����JFIFXX�����    $.' ",#(7),01444'9=82<.342  2!!22222222222222222222222222222222222222222222222222����"��4�� ���,�PG"Z_�4�˷����kjز�Z�,F+��_z�,�© �����zh6�٨�ic�fu���#ډb���_�N�?��wQ���5-�~�I���8����TK<5o�Iv-�����k�_U_�����~b�M��d����Ӝ�U�Hh��?]��E�w��Q���k�{��_}qFW7HTՑ��Y��F�?_�'ϔ��_�Ջt��=||I ��6�έ"�����D���/[�k�9���Y�8ds|\���Ҿp6�Ҵ���]��.����6�z<�v��@]�i%��$j��~�g��J>��no����pM[me�i$[����s�o�ᘨ�˸ nɜG-�ĨU�ycP�3.DB�li�;��hj���x7Z^�N�h������N3u{�:j�x�힞��#M&��jL P@_���� P��&��o8������9�����@Sz6�t7#O�ߋ �s}Yf�T���lmr����Z)'N��k�۞p����w\�Tȯ?�8`�O��i{wﭹW�[�r�� ��Q4F�׊���3m&L�=��h3����z~��#�\�l :�F,j@�� ʱ�wQT����8�"kJO���6�֚l����}���R�>ډK���]��y����&����p�}b��;N�1�m�r$�|��7�>e�@B�TM*-iH��g�D�)� E�m�|�ؘbҗ�a��Ҿ����t4���o���G��*oCN�rP���Q��@z,|?W[0�����:�n,jWiE��W��$~/�hp\��?��{(�0���+�Y8rΟ�+����>S-S����VN;�}�s?.����� w�9��˟<���Mq4�Wv'��{)0�1mB��V����W[�����8�/<� �%���wT^�5���b��)iM� pg�N�&ݝ��VO~�q���u���9� ����!��J27����$O-���! �:�%H��� ـ����y�ΠM=t{!S�� oK8������t<����è:a������[�����ա�H���~��w��Qz`�po�^ ����Q��n� �,uu�C�$ ^���,������8�#��:�6��e�|~���!�3�3.�\0��q��o�4`.|� ����y�Q�`~;�d�ׯ,��O�Zw�������`73�v�܋�<���Ȏ�� ـ4k��5�K�a�u�=9Yd��$>x�A�&�� j0� ���vF��� Y�|�y��� ~�6�@c��1vOp�Ig����4��l�OD���L����� R���c���j�_�uX6��3?nk��Wy�f;^*B� ��@�~a�`��Eu������+���6�L��.ü>��}y���}_�O�6�͐�:�YrG�X��kG�����l^w���~㒶sy��Iu�!� W ��X��N�7BV��O��!X�2����wvG�R�f�T#�����t�/?���%8�^�W�aT��G�cL�M���I��(J����1~�8�?aT ���]����AS�E��(��*E}� 2��#I/�׍qz��^t�̔���b�Yz4x���t�){ OH��+(E��A&�N�������XT��o��"�XC��'���)}�J�z�p� ��~5�}�^����+�6����w��c��Q�|Lp�d�H��}�(�.|����k��c4^�"�����Z?ȕ ��a<�L�!039C� �Eu�C�F�Ew�ç ;�n?�*o���B�8�bʝ���'#Rqf���M}7����]����s2tcS{�\icTx;�\��7K���P���ʇ Z O-��~��c>"��?�������P��E��O�8��@�8��G��Q�g�a�Վ���󁶠�䧘��_%#r�>�1�z�a��eb��qcPѵ��n���#L��� =��׀t� L�7�`��V���A{�C:�g���e@�w1 Xp3�c3�ġ����p��M"'-�@n4���fG��B3�DJ�8[Jo�ߐ���gK)ƛ��$���� ���8�3�����+���� �����6�ʻ���� ���S�kI�*KZlT _`���?��K����QK�d����B`�s}�>���`��*�>��,*@J�d�oF*����弝��O}�k��s��]��y�ߘ��c1G�V���<=�7��7����6�q�PT��tXԀ�!9*4�4Tހ3XΛex�46���Y��D ����� �BdemDa����\�_l,��G�/���֌7���Y�](�xTt^%�GE�����4�}bT���ڹ�����;Y)���B�Q��u��>J/J �⮶.�XԄ��j�ݳ�+E��d ��r�5�_D�1 ��o�� �B�x�΢�#���<��W�����8���R6�@g�M�.��� dr�D��>(otU��@x=��~v���2� ӣ�d�oBd��3�eO�6�㣷�����ݜ6��6Y��Qz`��S��{���\P�~z m5{J/L��1������<�e�ͅPu�b�]�ϔ���'������f�b� Zpw��c`"��i���BD@:)ִ�:�]��hv�E�w���T�l��P���"Ju�}��وV J��G6��. J/�Qgl߭�e�����@�z�Zev2u�)]կ�����7x���s�M�-<ɯ�c��r�v�����@��$�ޮ}lk���a���'����>x��O\�ZFu>�����ck#��&:��`�$�ai�>2Δ����l���oF[h��lE�ܺ�Πk:)���`�� $[6�����9�����kOw�\|���8}������ބ:��񶐕��I�A1/�=�2[�,�!��.}gN#�u����b��� ~��݊��}34q����d�E��Lc��$��"�[q�U�硬g^��%B �z���r�pJ�ru%v\h1Y�ne`ǥ:g���pQM~�^�Xi� ��`S�:V29.�P���V�?B�k�� AEvw%�_�9C�Q����wKekPؠ�\�;Io d�{ ߞo�c1eP����\� `����E=���@K<�Y���eڼ�J���w����{av�F�'�M�@/J��+9p���|]�����Iw &`��8���&M�hg��[�{��Xj��%��Ӓ�$��(����ʹN���<>�I���RY���K2�NPlL�ɀ)��&e����B+ь����( � �JTx���_?EZ� }@ 6�U���뙢ط�z��dWI�n` D����噥�[��uV��"�G&Ú����2g�}&m��?ċ�"����Om#��������� ��{�ON��"S�X��Ne��ysQ���@Fn��Vg���dX�~nj�]J�<�K]:��FW��b�������62�=��5f����JKw��bf�X�55��~J �%^����:�-�QIE��P��v�nZum� z � ~ə ���� ���ة����;�f��\v���g�8�1��f24;�V���ǔ�)����9���1\��c��v�/'Ƞ�w�������$�4�R-��t���� e�6�/�ġ �̕Ecy�J���u�B���<�W�ַ~�w[B1L۲�-JS΂�{���΃������A��20�c#��@ 0!1@AP"#2Q`$3V�%45a6�FRUq��� ����^7ׅ,$n�������+��F�`��2X'��0vM��p�L=������5��8������u�p~���.�`r�����\���O��,ư�0oS ��_�M�����l���4�kv\JSd���x���SW�<��Ae�IX����������$I���w�:S���y���›R��9�Q[���,�5�;�@]�%���u�@ *ro�lbI �� ��+���%m:�͇ZV�����u�̉����θau<�fc�.����{�4Ա� �Q����*�Sm��8\ujqs]{kN���)qO�y�_*dJ�b�7���yQqI&9�ԌK!�M}�R�;������S�T���1���i[U�ɵz�]��U)V�S6���3$K{�ߊ<�(� E]Զ[ǼENg�����'�\?#)Dkf��J���o��v���'�%ƞ�&K�u�!��b�35LX�Ϸ��63$K�a�;�9>,R��W��3�3� d�JeTYE.Mϧ��-�o�j3+y��y^�c�������VO�9NV\nd�1 ��!͕_)a�v;����թ�M�lWR1��)El��P;��yوÏ�u 3�k�5Pr6<�⒲l�!˞*��u־�n�!�l:����UNW ��%��Chx8vL'��X�@��*��)���̮��ˍ��� ���D-M�+J�U�kvK����+�x8��cY������?�Ԡ��~3mo��|�u@[XeY�C�\Kp�x8�oC�C�&����N�~3-H���� ��MX�s�u<`���~"WL��$8ξ��3���a�)|:@�m�\���^�`�@ҷ)�5p+��6���p�%i)P M���ngc�����#0Aruz���RL+xSS?���ʮ}()#�t��mˇ!��0}}y����<�e� �-ή�Ԩ��X������ MF���ԙ~l L.3���}�V뽺�v�����멬��Nl�)�2����^�Iq��a��M��qG��T�����c3#������3U�Ǎ���}��לS�|qa��ڃ�+���-��2�f����/��bz��ڐ�� �ݼ[2�ç����k�X�2�* �Z�d���J�G����M*9W���s{��w���T��x��y,�in�O�v��]���n����P�$�JB@=4�OTI�n��e�22a\����q�d���%�$��(���:���: /*�K[PR�fr\nڙdN���F�n�$�4�[�� U�zƶ����� �mʋ���,�ao�u 3�z� �x��Kn����\[��VFmbE;�_U��&V�Gg�]L�۪&#n%�$ɯ�dG���D�TI=�%+AB�Ru#��b4�1�»x�cs�YzڙJG��f��Il��d�eF'T� iA��T���uC�$����Y��H?����[!G`}���ͪ� �纤Hv\������j�Ex�K���!���OiƸ�Yj�+u-<���'q����uN�*�r\��+�]���<�wOZ.fp�ێ��,-*)V?j-kÊ#�`�r��dV����(�ݽBk�����G�ƛk�QmUڗe��Z���f}|����8�8��a���i��3'J�����~G_�^���d�8w������ R�`(�~�.��u���l�s+g�bv���W���lGc}��u���afE~1�Ue������Z�0�8�=e�� f@/�jqEKQQ�J��oN��J���W5~M>$6�Lt�;$ʳ{���^��6�{����v6���ķܰg�V�cnn �~z�x�«�,2�u�?cE+Ș�H؎�%�Za�)���X>uW�Tz�Nyo����s���FQƤ��$��*�&�LLXL)�1�" L��eO��ɟ�9=���:t��Z���c��Ž���Y?�ӭV�wv�~,Y��r�ۗ�|�y��GaF�����C�����.�+� ���v1���fήJ�����]�S��T��B��n5sW}y�$��~z�'�c ��8 ��� ,! �p��VN�S��N�N�q��y8z˱�A��4��*��'������2n<�s���^ǧ˭P�Jޮɏ�U�G�L�J�*#��<�V��t7�8����TĜ>��i}K%,���)[��z�21z ?�N�i�n1?T�I�R#��m-�����������������1����lA�`��fT5+��ܐ�c�q՝��ʐ��,���3�f2U�եmab��#ŠdQ�y>\��)�SLY����w#��.���ʑ�f��� ,"+�w�~�N�'�c�O�3F�������N<���)j��&��,-� �љ���֊�_�zS���TǦ����w�>��?�������n��U仆�V���e�����0���$�C�d���rP �m�׈e�Xm�Vu� �L��.�bֹ��� �[Դaզ���*��\y�8�Է:�Ez\�0�Kq�C b��̘��cө���Q��=0Y��s�N��S.���3.���O�o:���#���v7�[#߫ ��5�܎�L���Er4���9n��COWlG�^��0k�%<���ZB���aB_���������'=��{i�v�l�$�uC���mƎҝ{�c㱼�y]���W�i ��ߧc��m�H� m�"�"�����;Y�ߝ�Z�Ǔ�����:S#��|}�y�,/k�Ld� TA�(�AI$+I3��;Y*���Z��}|��ӧO��d�v��..#:n��f>�>���ȶI�TX��� 8��y����"d�R�|�)0���=���n4��6ⲑ�+��r<�O�܂~zh�z����7ܓ�HH�Ga롏���nCo�>������a ���~]���R���̲c?�6(�q�;5%� |�uj�~z8R=X��I�V=�|{v�Gj\gc��q����z�؋%M�ߍ����1y��#��@f^���^�>N�����#x#۹��6�Y~�?�dfPO��{��P�4��V��u1E1J �*|���%���JN��`eWu�zk M6���q t[�� ��g�G���v��WIG��u_ft����5�j�"�Y�:T��ɐ���*�;� e5���4����q$C��2d�}���� _S�L#m�Yp��O�.�C�;��c����Hi#֩%+) �Ӎ��ƲV���SYź��g |���tj��3�8���r|���V��1#;.SQ�A[���S������#���`n�+���$��$I �P\[�@�s��(�ED�z���P��])8�G#��0B��[ى��X�II�q<��9�~[Z멜�Z�⊔IWU&A>�P~�#��dp<�?����7���c��'~���5 ��+$���lx@�M�dm��n<=e�dyX��?{�|Aef ,|n3�<~z�ƃ�uۧ�����P��Y,�ӥQ�*g�#먙R�\���;T��i,��[9Qi歉����c>]9�� ��"�c��P�� �Md?٥��If�ت�u��k��/����F��9�c*9��Ǎ:�ØF���z�n*�@|I�ށ9����N3{'��[�'ͬ�Ҳ4��#}��!�V� Fu��,�,mTIk���v C�7v���B�6k�T9��1�*l� '~��ƞF��lU��'�M ����][ΩũJ_�{�i�I�n��$���L�� j��O�dx�����kza۪��#�E��Cl����x˘�o�����V���ɞ�ljr��)�/,�߬h�L��#��^��L�ф�,íMƁe�̩�NB�L�����iL����q�}��(��q��6IçJ$�W�E$��:������=#����(�K�B����zђ <��K(�N�۫K�w��^O{!����)�H���>x�������lx�?>Պ�+�>�W���,Ly!_�D���Ō�l���Q�!�[ �S����J��1��Ɛ�Y}��b,+�Lo�x�ɓ)����=�y�oh�@�꥟/��I��ѭ=��P�y9��� �ۍYӘ�e+�p�Jnϱ?V\SO%�(�t� ���=?MR�[Ș�����d�/ ��n�l��B�7j� ��!�;ӥ�/�[-���A�>�dN�sLj ��,ɪv��=1c�.SQ�O3�U���ƀ�ܽ�E����������̻��9G�ϷD�7(�}��Ävӌ\�y�_0[w ���<΍>����a_��[0+�L��F.�޺��f�>oN�T����q;���y\��bՃ��y�jH�<|q-eɏ�_?_9+P���Hp$�����[ux�K w�Mw��N�ی'$Y2�=��q���KB��P��~������Yul:�[<����F1�2�O���5=d����]Y�sw:���Ϯ���E��j,_Q��X��z`H1,#II ��d�wr��P˂@�ZJV����y$�\y�{}��^~���[:N����ߌ�U�������O��d�����ؾe��${p>G��3c���Ė�lʌ�� ת��[��`ϱ�-W����dg�I��ig2��� ��}s ��ؤ(%#sS@���~���3�X�nRG�~\jc3�v��ӍL��M[JB�T��s3}��j�Nʖ��W����;7��ç?=X�F=-�=����q�ߚ���#���='�c��7���ڑW�I(O+=:uxq�������������e2�zi+�kuG�R��������0�&e�n���iT^J����~\jy���p'dtG��s����O��3����9* �b#Ɋ�� p������[Bws�T�>d4�ۧs���nv�n���U���_�~,�v����ƜJ1��s�� �QIz��)�(lv8M���U=�;����56��G���s#�K���MP�=��LvyGd��}�VwWBF�'�à �?MH�U�g2�� ����!�p�7Q��j��ڴ����=��j�u��� Jn�A s���uM������e��Ɔ�Ҕ�!)'��8Ϣ�ٔ��ޝ(��Vp���צ֖d=�IC�J�Ǡ{q������kԭ�߸���i��@K����u�|�p=..�*+����x�����z[Aqġ#s2a�Ɗ���RR�)*HRsi�~�a &f��M��P����-K�L@��Z��Xy�'x�{}��Zm+���:�)�) IJ�-i�u���� ���ܒH��'�L(7�y�GӜq���� j��� 6ߌg1�g�o���,kر���tY�?W,���p���e���f�OQS��!K�۟cҒA�|ս�j�>��=⬒��˧L[�� �߿2JaB~R��u�:��Q�] �0H~���]�7��Ƽ�I���(}��cq '�ήET���q�?f�ab���ӥvr� �)o��-Q��_'����ᴎo��K������;��V���o��%���~OK ����*��b�f:���-ťIR��`B�5!RB@���ï�� �u �̯e\�_U�_������� g�ES��3�������QT��a����x����U<~�c?�*�#]�MW,[8O�a�x��]�1bC|踤�P��lw5V%�)�{t�<��d��5���0i�XSU��m:��Z�┵�i�"��1�^B�-��P�hJ��&)O��*�D��c�W��vM��)����}���P��ܗ-q����\mmζZ-l@�}��a��E�6��F�@��&Sg@���ݚ�M����� ȹ 4����#p�\H����dYDo�H���"��\��..R�B�H�z_�/5˘����6��KhJR��P�mƶi�m���3�,#c�co��q�a)*Pt����R�m�k�7x�D�E�\Y�閣_X�<���~�)���c[[�BP����6�Yq���S��0����%_����;��Àv�~�| VS؇ ��'O0��F0��\���U�-�d@�����7�SJ*z��3n��y��P����O���������m�~�P�3|Y��ʉr#�C�<�G~�.,! ���bqx���h~0=��!ǫ�jy����l�O,�[B��~��|9��ٱ����Xly�#�i�B��g%�S��������tˋ���e���ې��\[d�t)��.+u�|1 ������#�~Oj����hS�%��i.�~X���I�H�m��0n���c�1uE�q��cF�RF�o���7� �O�ꮧ� ���ۛ{��ʛi5�rw?׌#Qn�TW��~?y$��m\�\o����%W� ?=>S�N@�� �Ʈ���R����N�)�r"C�:��:����� �����#��qb��Y�. �6[��2K����2u�Ǧ�HYR��Q�MV��� �G�$��Q+.>�����nNH��q�^��� ����q��mM��V��D�+�-�#*�U�̒ ���p욳��u:�������IB���m���PV@O���r[b= �� ��1U�E��_Nm�yKbN�O���U�}�the�`�|6֮P>�\2�P�V���I�D�i�P�O;�9�r�mAHG�W�S]��J*�_�G��+kP�2����Ka�Z���H�'K�x�W�MZ%�O�YD�Rc+o��?�q��Ghm��d�S�oh�\�D�|:W������UA�Qc yT�q������~^�H��/��#p�CZ���T�I�1�ӏT����4��"�ČZ�����}��`w�#�*,ʹ�� ��0�i��課�Om�*�da��^gJ݅{���l�e9uF#T�ֲ��̲�ٞC"�q���ߍ ոޑ�o#�XZTp����@ o�8��(jd��xw�]�,f���`~�|,s��^����f�1���t��|��m�򸄭/ctr��5s��7�9Q�4�H1꠲BB@l9@���C�����+�wp�xu�£Yc�9��?`@#�o�mH�s2��)�=��2�.�l����jg�9$�Y�S�%*L������R�Y������7Z���,*=�䷘$�������arm�o�ϰ���UW.|�r�uf����IGw�t����Zwo��~5 ��YյhO+=8fF�)�W�7�L9lM�̘·Y���֘YLf�큹�pRF���99.A �"wz��=E\Z���'a� 2��Ǚ�#;�'}�G���*��l��^"q��+2FQ� hj��kŦ��${���ޮ-�T�٭cf�|�3#~�RJ����t��$b�(R��(����r���dx� >U b�&9,>���%E\� Ά�e�$��'�q't��*�א���ެ�b��-|d���SB�O�O��$�R+�H�)�܎�K��1m`;�J�2�Y~9��O�g8=vqD`K[�F)k�[���1m޼c��n���]s�k�z$@��)!I �x՝"v��9=�ZA=`Ɠi �:�E��)`7��vI��}d�YI�_ �o�:ob���o ���3Q��&D&�2=�� �Ά��;>�h����y.*ⅥS������Ӭ�+q&����j|UƧ����}���J0��WW< ۋS�)jQR�j���Ư��rN)�Gű�4Ѷ(�S)Ǣ�8��i��W52���No˓� ۍ%�5brOn�L�;�n��\G����=�^U�dI���8$�&���h��'���+�(������cȁ߫k�l��S^���cƗjԌE�ꭔ��gF���Ȓ��@���}O���*;e�v�WV���YJ\�]X'5��ղ�k�F��b 6R�o՜m��i N�i����>J����?��lPm�U��}>_Z&�KK��q�r��I�D�Չ~�q�3fL�:S�e>���E���-G���{L�6p�e,8��������QI��h��a�Xa��U�A'���ʂ���s�+טIjP�-��y�8ۈZ?J$��W�P� ��R�s�]��|�l(�ԓ��sƊi��o(��S0��Y� 8�T97.�����WiL��c�~�dxc�E|�2!�X�K�Ƙਫ਼�$((�6�~|d9u+�qd�^3�89��Y�6L�.I�����?���iI�q���9�)O/뚅����O���X��X�V��ZF[�یgQ�L��K1���RҖr@v�#��X�l��F���Нy�S�8�7�kF!A��sM���^rkp�jP�DyS$N���q��nxҍ!U�f�!eh�i�2�m���`�Y�I�9r�6� �TF���C}/�y�^���Η���5d�'��9A-��J��>{�_l+�`��A���[�'��յ�ϛ#w:݅�%��X�}�&�PSt�Q�"�-��\縵�/����$Ɨh�Xb�*�y��BS����;W�ջ_mc�����vt?2}1�;qS�d�d~u:2k5�2�R�~�z+|HE!)�Ǟl��7`��0�<�,�2*���Hl-��x�^����'_TV�gZA�'j� ^�2Ϊ��N7t�����?w�� �x1��f��Iz�C-Ȗ��K�^q�;���-W�DvT�7��8�Z�������� hK�(P:��Q- �8�n�Z���܃e貾�<�1�YT<�,�����"�6{/ �?�͟��|1�:�#g��W�>$����d��J��d�B��=��jf[��%rE^��il:��B���x���Sּ�1հ��,�=��*�7 fcG��#q� �eh?��2�7�����,�!7x��6�n�LC�4x��},Geǝ�tC.��vS �F�43��zz\��;QYC,6����~;RYS/6���|2���5���v��T��i����������mlv��������&� �nRh^ejR�LG�f���? �ۉҬܦƩ��|��Ȱ����>3����!v��i�ʯ�>�v��オ�X3e���_1z�Kȗ\<������!�8���V��]��?b�k41�Re��T�q��mz��TiOʦ�Z��Xq���L������q"+���2ۨ��8}�&N7XU7Ap�d�X��~�׿��&4e�o�F��� �H����O���č�c�� 懴�6���͉��+)��v;j��ݷ�� �UV�� i��� j���Y9GdÒJ1��詞�����V?h��l����l�cGs�ځ�������y�Ac�����\V3�? �� ܙg�>qH�S,�E�W�[�㺨�uch�⍸�O�}���a��>�q�6�n6����N6�q������N ! 1AQaq�0@����"2BRb�#Pr���3C`��Scst���$4D���%Td�� ?���N����a��3��m���C���w��������xA�m�q�m���m������$����4n淿t'��C"w��zU=D�\R+w�p+Y�T�&�պ@��ƃ��3ޯ?�Aﶂ��aŘ���@-�����Q�=���9D��ռ�ѻ@��M�V��P��܅�G5�f�Y<�u=,EC)�<�Fy'�"�&�չ�X~f��l�KԆV��?�� �W�N����=(� �;���{�r����ٌ�Y���h{�١������jW����P���Tc�����X�K�r��}���w�R��%��?���E��m�� �Y�q|����\lEE4���r���}�lsI�Y������f�$�=�d�yO����p�����yBj8jU�o�/�S��?�U��*������ˍ�0������u�q�m [�?f����a�� )Q�>����6#������� ?����0UQ����,IX���(6ڵ[�DI�MNލ�c&���υ�j\��X�R|,4��� j������T�hA�e��^���d���b<����n�� �즇�=!���3�^�`j�h�ȓr��jẕ�c�,ٞX����-����a�ﶔ���#�$��]w�O��Ӫ�1y%��L�Y<�wg#�ǝ�̗`�x�xa�t�w��»1���o7o5��>�m뭛C���Uƃߜ}�C���y1Xνm�F8�jI���]����H���ۺиE@I�i;r�8ӭ����V�F�Շ| ��&?�3|x�B�MuS�Ge�=Ӕ�#BE5G�����Y!z��_e��q�р/W>|-�Ci߇�t�1ޯќd�R3�u��g�=0 5��[?�#͏��q�cf���H��{ ?u�=?�?ǯ���}Z��z���hmΔ�BFTW�����<�q�(v� ��!��z���iW]*�J�V�z��gX֧A�q�&��/w���u�gYӘa���; �i=����g:��?2�dž6�ى�k�4�>�Pxs����}������G�9��3 ���)gG�R<>r h�$��'nc�h�P��Bj��J�ҧH� -��N1���N��?��~��}-q!=��_2hc�M��l�vY%UE�@|�v����M2�.Y[|y�"Eï��K�ZF,�ɯ?,q�?v�M 80jx�"�;�9vk�����+ ֧�� �ȺU��?�%�vcV��mA�6��Qg^M����A}�3�nl� QRN�l8�kkn�'�����(��M�7m9و�q���%ޟ���*h$Zk"��$�9��: �?U8�Sl��,,|ɒ��xH(ѷ����Gn�/Q�4�P��G�%��Ա8�N��!� �&�7�;���eKM7�4��9R/%����l�c>�x;������>��C�:�����t��h?aKX�bhe�ᜋ^�$�Iհ �hr7%F$�E��Fd���t��5���+�(M6�t����Ü�UU|zW�=a�Ts�Tg������dqP�Q����b'�m���1{|Y����X�N��b �P~��F^F:����k6�"�j!�� �I�r�`��1&�-$�Bevk:y���#yw��I0��x��=D�4��tU���P�ZH��ڠ底taP��6����b>�xa����Q�#� WeF��ŮNj�p�J* mQ�N����*I�-*�ȩ�F�g�3 �5��V�ʊ�ɮ�a��5F���O@{���NX��?����H�]3��1�Ri_u��������ѕ�� ����0��� F��~��:60�p�͈�S��qX#a�5>���`�o&+�<2�D����: �������ڝ�$�nP���*)�N�|y�Ej�F�5ټ�e���ihy�Z �>���k�bH�a�v��h�-#���!�Po=@k̆IEN��@��}Ll?j�O������߭�ʞ���Q|A07x���wt!xf���I2?Z��<ץ�T���cU�j��]��陎Ltl �}5�ϓ��$�,��O�mˊ�;�@O��jE��j(�ا,��LX���LO���Ц�90�O �.����a��nA���7������j4 ��W��_ٓ���zW�jcB������y՗+EM�)d���N�g6�y1_x��p�$Lv:��9�"z��p���ʙ$��^��JԼ*�ϭ����o���=x�Lj�6�J��u82�A�H�3$�ٕ@�=Vv�]�'�qEz�;I˼��)��=��ɯ���x �/�W(V���p�����$ �m�������u�����񶤑Oqˎ�T����r��㠚x�sr�GC��byp�G��1ߠ�w e�8�$⿄����/�M{*}��W�]˷.�CK\�ުx���/$�WPw���r� |i���&�}�{�X� �>��$-��l���?-z���g����lΆ���(F���h�vS*���b���߲ڡn,|)mrH[���a�3�ר�[1��3o_�U�3�TC�$��(�=�)0�kgP���� ��u�^=��4 �WYCҸ:��vQ�ר�X�à��tk�m,�t*��^�,�}D*� �"(�I��9R����>`�`��[~Q]�#af��i6l��8���6�:,s�s�N6�j"�A4���IuQ��6E,�GnH��zS�HO�uk�5$�I�4��ؤ�Q9�@��C����wp�BGv[]�u�Ov���0I4���\��y�����Q�Ѹ��~>Z��8�T��a��q�ޣ;z��a���/��S��I:�ܫ_�|������>=Z����8:�S��U�I�J��"IY���8%b8���H��:�QO�6�;7�I�S��J��ҌAά3��>c���E+&jf$eC+�z�;��V����� �r���ʺ������my�e���aQ�f&��6�ND��.:��NT�vm�<- u���ǝ\MvZY�N�NT��-A�>jr!S��n�O 1�3�Ns�%�3D@���`������ܟ 1�^c<���� �a�ɽ�̲�Xë#�w�|y�cW�=�9I*H8�p�^(4���՗�k��arOcW�tO�\�ƍR��8����'�K���I�Q�����?5�>[�}��yU�ײ -h��=��% q�ThG�2�)���"ו3]�!kB��*p�FDl�A���,�eEi�H�f�Ps�����5�H:�Փ~�H�0Dت�D�I����h�F3�������c��2���E��9�H��5�zԑ�ʚ�i�X�=:m�xg�hd(�v����׊�9iS��O��d@0ڽ���:�p�5�h-��t�&���X�q�ӕ,��ie�|���7A�2���O%P��E��htj��Y1��w�Ѓ!����  ���� ࢽ��My�7�\�a�@�ţ�J �4�Ȼ�F�@o�̒?4�wx��)��]�P��~�����u�����5�����7X ��9��^ܩ�U;Iꭆ 5 �������eK2�7(�{|��Y׎ �V��\"���Z�1� Z�����}��(�Ǝ"�1S���_�vE30>���p;� ΝD��%x�W�?W?v����o�^V�i�d��r[��/&>�~`�9Wh��y�;���R��� ;;ɮT��?����r$�g1�K����A��C��c��K��l:�'��3 c�ﳯ*"t8�~l��)���m��+U,z��`(�>yJ�?����h>��]��v��ЍG*�{`��;y]��I�T� ;c��NU�fo¾h���/$���|NS���1�S�"�H��V���T���4��uhǜ�]�v;���5�͠x��'C\�SBpl���h}�N����� A�Bx���%��ޭ�l��/����T��w�ʽ]D�=����K���ž�r㻠l4�S�O?=�k �M:� ��c�C�a�#ha���)�ѐxc�s���gP�iG��{+���x���Q���I= �� z��ԫ+ �8"�k�ñ�j=|����c ��y��CF��/��*9ж�h{ �?4�o� ��k�m�Q�N�x��;�Y��4膚�a�w?�6�>e]�����Q�r�:����g�,i"�����ԩA�*M�<�G��b�if��l^M��5� �Ҩ�{����6J��ZJ�����P�*�����Y���ݛu�_4�9�I8�7���������,^ToR���m4�H��?�N�S�ѕw��/S��甍�@�9H�S�T��t�ƻ���ʒU��*{Xs�@����f�����֒Li�K{H�w^���������Ϥm�tq���s� ���ք��f:��o~s��g�r��ט� �S�ѱC�e]�x���a��) ���(b-$(�j>�7q�B?ӕ�F��hV25r[7 Y� }L�R��}����*sg+��x�r�2�U=�*'WS��ZDW]�WǞ�<��叓���{�$�9Ou4��y�90-�1�'*D`�c�^o?(�9��u���ݐ��'PI&� f�Jݮ�������:wS����jfP1F:X �H�9dԯ���˝[�_54 �}*;@�ܨ�� ð�yn�T���?�ןd�#���4rG�ͨ��H�1�|-#���Mr�S3��G�3�����)�.᧏3v�z֑��r����$G"�`j �1t��x0<Ɔ�Wh6�y�6��,œ�Ga��gA����y��b��)��h�D��ß�_�m��ü �gG;��e�v��ݝ�nQ� ��C����-�*��o���y�a��M��I�>�<���]obD��"�:���G�A��-\%LT�8���c�)��+y76���o�Q�#*{�(F�⽕�y����=���rW�\p���۩�c���A���^e6��K������ʐ�cVf5$�'->���ՉN"���F�"�UQ@�f��Gb~��#�&�M=��8�ט�JNu9��D��[̤�s�o�~������ G��9T�tW^g5y$b��Y'��س�Ǵ�=��U-2 #�MC�t(�i� �lj�@Q 5�̣i�*�O����s�x�K�f��}\��M{E�V�{�υ��Ƈ�����);�H����I��fe�Lȣr�2��>��W�I�Ȃ6������i��k�� �5�YOxȺ����>��Y�f5'��|��H+��98pj�n�.O�y�������jY��~��i�w'������l�;�s�2��Y��:'lg�ꥴ)o#'Sa�a�K��Z� �m��}�`169�n���"���x��I ��*+� }F<��cГ���F�P�������ֹ*�PqX�x۩��,� ��N�� �4<-����%����:��7����W���u�`����� $�?�I��&����o��o��`v�>��P��"��l���4��5'�Z�gE���8���?��[�X�7(��.Q�-��*���ތL@̲����v��.5���[��=�t\+�CNܛ��,g�SQnH����}*F�G16���&:�t��4ُ"A��̣��$�b �|����#rs��a�����T�� ]�<�j��BS�('$�ɻ� �wP;�/�n��?�ݜ��x�F��yUn�~mL*-�������Xf�wd^�a�}��f�,=t�׵i�.2/wpN�Ep8�OР���•��R�FJ� 55TZ��T �ɭ�<��]��/�0�r�@�f��V��V����Nz�G��^���7hZi����k��3�,kN�e|�vg�1{9]_i��X5y7� 8e]�U����'�-2,���e"����]ot�I��Y_��n�(JҼ��1�O ]bXc���Nu�No��pS���Q_���_�?i�~�x h5d'�(qw52] ��'ޤ�q��o1�R!���`ywy�A4u���h<קy���\[~�4�\ X�Wt/� 6�����n�F�a8��f���z �3$�t(���q��q�x��^�XWeN'p<-v�!�{�(>ӽDP7��ո0�y)�e$ٕv�Ih'Q�EA�m*�H��RI��=:��� ���4牢) �%_iN�ݧ�l]� �Nt���G��H�L��� ɱ�g<���1V�,�J~�ٹ�"K��Q�� 9�HS�9�?@��k����r�;we݁�]I�!{ �@�G�[�"��`���J:�n]�{�cA�E����V��ʆ���#��U9�6����j�#Y�m\��q�e4h�B�7��C�������d<�?J����1g:ٳ���=Y���D�p�ц� ׈ǔ��1�]26؜oS�'��9�V�FVu�P�h�9�xc�oq�X��p�o�5��Ա5$�9W�V(�[Ak�aY錎qf;�'�[�|���b�6�Ck��)��#a#a˙��8���=äh�4��2��C��4tm^ �n'c���]GQ$[Wҿ��i���vN�{Fu ��1�gx��1┷���N�m��{j-,��x�� Ūm�ЧS�[�s���Gna���䑴�� x�p 8<������97�Q���ϴ�v�aϚG��Rt�Һ׈�f^\r��WH�JU�7Z���y)�vg=����n��4�_)y��D'y�6�]�c�5̪�\� �PF�k����&�c;��cq�$~T�7j ���nç]�<�g ":�to�t}�159�<�/�8������m�b�K#g'I'.W�����6��I/��>v��\�MN��g���m�A�yQL�4u�Lj�j9��#44�t��l^�}L����n��R��!��t��±]��r��h6ٍ>�yҏ�N��fU�� ���� Fm@�8}�/u��jb9������he:A�y�ծw��GpΧh�5����l}�3p468��)U��d��c����;Us/�֔�YX�1�O2��uq�s��`hwg�r~�{ R��mhN��؎*q 42�*th��>�#���E����#��Hv�O����q�}�����6�e��\�,Wk�#���X��b>��p}�դ��3���T5��†��6��[��@�P�y*n��|'f�֧>�lư΂�̺����SU�'*�q�p�_S�����M�� '��c�6�����m�� ySʨ;M��r���Ƌ�m�Kxo,���Gm�P��A�G�:��i��w�9�}M(�^�V��$ǒ�ѽ�9���|���� �a����J�SQ�a���r�B;����}���ٻ֢�2�%U���c�#�g���N�a�ݕ�'�v�[�OY'��3L�3�;,p�]@�S��{ls��X�'���c�jw�k'a�.��}�}&�� �dP�*�bK=ɍ!����;3n�gΊU�ߴmt�'*{,=SzfD� A��ko~�G�aoq�_mi}#�m�������P�Xhύ����mxǍ�΂���巿zf��Q���c���|kc�����?���W��Y�$���_Lv����l߶��c���`?����l�j�ݲˏ!V��6����U�Ђ(A���4y)H���p�Z_�x��>���e��R��$�/�`^'3qˏ�-&Q�=?��CFVR �D�fV�9��{�8g�������n�h�(P"��6�[�D���< E�����~0<@�`�G�6����Hг�cc�� �c�K.5��D��d�B���`?�XQ��2��ٿyqo&+�1^� DW�0�ꊩ���G�#��Q�nL3��c���������/��x ��1�1[y�x�პCW��C�c�UĨ80�m�e�4.{�m��u���I=��f�����0QRls9���f���������9���~f�����Ǩ��a�"@�8���ȁ�Q����#c�ic������G��$���G���r/$W�(��W���V�"��m�7�[m�A�m����bo��D� j����۳� l���^�k�h׽����� ��#� iXn�v��eT�k�a�^Y�4�BN��ĕ��0 !01@Q"2AaPq3BR������?���@4�Q�����T3,���㺠�W�[=JK�Ϟ���2�r^7��vc�:�9 �E�ߴ�w�S#d���Ix��u��:��Hp��9E!�� V 2;73|F��9Y���*ʬ�F��D����u&���y؟��^EA��A��(ɩ���^��GV:ݜDy�`��Jr29ܾ�㝉��[���E;Fzx��YG��U�e�Y�C���� ����v-tx����I�sם�Ę�q��Eb�+P\ :>�i�C'�;�����k|z�رn�y]�#ǿb��Q��������w�����(�r|ӹs��[�D��2v-%��@;�8<a���[\o[ϧw��I!��*0�krs)�[�J9^��ʜ��p1)� "��/_>��o��<1����A�E�y^�C��`�x1'ܣn�p��s`l���fQ��):�l����b>�Me�jH^?�kl3(�z:���1ŠK&?Q�~�{�ٺ�h�y���/�[��V�|6��}�KbX����mn[-��7�5q�94�������dm���c^���h� X��5��<�eޘ>G���-�}�دB�ޟ� ��|�rt�M��V+�]�c?�-#ڛ��^ǂ}���Lkr���O��u�>�-D�ry� D?:ޞ�U��ǜ�7�V��?瓮�"�#���r��չģVR;�n���/_� ؉v�ݶe5d�b9��/O��009�G���5n�W����JpA�*�r9�>�1��.[t���s�F���nQ� V 77R�]�ɫ8����_0<՜�IF�u(v��4��F�k�3��E)��N:��yڮe��P�`�1}�$WS��J�SQ�N�j�ٺ��޵�#l���ј(�5=��5�lǏmoW�v-�1����v,W�mn��߀$x�<����v�j(����c]��@#��1������Ǔ���o'��u+����;G�#�޸��v-lη��/(`i⣍Pm^���ԯ̾9Z��F��������n��1��� ��]�[��)�'������:�֪�W��FC����� �B9،!?���]��V��A�Վ�M��b�w��G F>_DȬ0¤�#�QR�[V��kz���m�w�"��9ZG�7'[��=�Q����j8R?�zf�\a�=��O�U����*oB�A�|G���2�54 �p��.w7� �� ��&������ξxGHp� B%��$g�����t�Џ򤵍z���HN�u�Я�-�'4��0��;_��3 !01"@AQa2Pq#3BR������?��ʩca��en��^��8���<�u#��m*08r��y�N"�<�Ѳ0��@\�p��� �����Kv�D��J8�Fҽ� �f�Y��-m�ybX�NP����}�!*8t(�OqѢ��Q�wW�K��ZD��Δ^e��!� ��B�K��p~�����e*l}z#9ң�k���q#�Ft�o��S�R����-�w�!�S���Ӥß|M�l޶V��!eˈ�8Y���c�ЮM2��tk���� ������J�fS����Ö*i/2�����n]�k�\���|4yX�8��U�P.���Ы[���l��@"�t�<������5�lF���vU�����W��W��;�b�cД^6[#7@vU�xgZv��F�6��Q,K�v��� �+Ъ��n��Ǣ��Ft���8��0��c�@�!�Zq s�v�t�;#](B��-�nῃ~���3g������5�J�%���O������n�kB�ĺ�.r��+���#�N$?�q�/�s�6��p��a����a��J/��M�8��6�ܰ"�*������ɗud"\w���aT(����[��F��U՛����RT�b���n�*��6���O��SJ�.�ij<�v�MT��R\c��5l�sZB>F��<7�;EA��{��E���Ö��1U/�#��d1�a�n.1ě����0�ʾR�h��|�R��Ao�3�m3 ��%�� ���28Q� ��y��φ���H�To�7�lW>����#i`�q���c����a��� �m,B�-j����݋�'mR1Ήt�>��V��p���s�0IbI�C.���1R�ea�����]H�6����������4B>��o��](��$B���m�����a�!=��?�B� K�Ǿ+�Ծ"�n���K��*��+��[T#�{E�J�S����Q�����s�5�:�U�\wĐ�f�3����܆&�)����I���Ԇw��E T�lrTf6Q|R�h:��[K�� �z��c֧�G�C��%\��_�a�84��HcO�bi��ؖV��7H �)*ģK~Xhչ0��4?�0��� �E<���}3���#���u�?�� ��|g�S�6ꊤ�|�I#Hڛ� �ա��w�X��9��7���Ŀ%�SL��y6č��|�F�a 8���b��$�sק�h���b9RAu7�˨p�Č�_\*w��묦��F ����4D~�f����|(�"m���NK��i�S�>�$d7SlA��/�²����SL��|6N�}���S�˯���g��]6��; �#�.��<���q'Q�1|KQ$�����񛩶"�$r�b:���N8�w@��8$�� �AjfG|~�9F ���Y��ʺ��Bwؒ������M:I岎�G��`s�YV5����6��A �b:�W���G�q%l�����F��H���7�������Fsv7��k�� 403WebShell
403Webshell
Server IP : 14.139.229.36  /  Your IP : 10.1.1.9
Web Server : Apache
System : Linux gbpuat-tech.ac.in 4.18.0-240.15.1.el8_3.x86_64 #1 SMP Mon Mar 1 17:16:16 UTC 2021 x86_64
User : apache ( 48)
PHP Version : 7.2.24
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : OFF  |  Sudo : ON  |  Pkexec : ON
Directory :  /proc/self/root/var/www/gbpuat-tech/html/mis/PHPExcel/PHPExcel/Calculation/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /proc/self/root/var/www/gbpuat-tech/html/mis/PHPExcel/PHPExcel/Calculation/Engineering.php
<?php
/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * @category	PHPExcel
 * @package		PHPExcel_Calculation
 * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license		http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version		##VERSION##, ##DATE##
 */


/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
	/**
	 * @ignore
	 */
	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}


/** EULER */
define('EULER', 2.71828182845904523536);


/**
 * PHPExcel_Calculation_Engineering
 *
 * @category	PHPExcel
 * @package		PHPExcel_Calculation
 * @copyright	Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Calculation_Engineering {

	/**
	 * Details of the Units of measure that can be used in CONVERTUOM()
	 *
	 * @var mixed[]
	 */
	private static $_conversionUnits = array( 'g'		=> array(	'Group'	=> 'Mass',			'Unit Name'	=> 'Gram',						'AllowPrefix'	=> True		),
											  'sg'		=> array(	'Group'	=> 'Mass',			'Unit Name'	=> 'Slug',						'AllowPrefix'	=> False	),
											  'lbm'		=> array(	'Group'	=> 'Mass',			'Unit Name'	=> 'Pound mass (avoirdupois)',	'AllowPrefix'	=> False	),
											  'u'		=> array(	'Group'	=> 'Mass',			'Unit Name'	=> 'U (atomic mass unit)',		'AllowPrefix'	=> True		),
											  'ozm'		=> array(	'Group'	=> 'Mass',			'Unit Name'	=> 'Ounce mass (avoirdupois)',	'AllowPrefix'	=> False	),
											  'm'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Meter',						'AllowPrefix'	=> True		),
											  'mi'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Statute mile',				'AllowPrefix'	=> False	),
											  'Nmi'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Nautical mile',				'AllowPrefix'	=> False	),
											  'in'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Inch',						'AllowPrefix'	=> False	),
											  'ft'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Foot',						'AllowPrefix'	=> False	),
											  'yd'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Yard',						'AllowPrefix'	=> False	),
											  'ang'		=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Angstrom',					'AllowPrefix'	=> True		),
											  'Pica'	=> array(	'Group'	=> 'Distance',		'Unit Name'	=> 'Pica (1/72 in)',			'AllowPrefix'	=> False	),
											  'yr'		=> array(	'Group'	=> 'Time',			'Unit Name'	=> 'Year',						'AllowPrefix'	=> False	),
											  'day'		=> array(	'Group'	=> 'Time',			'Unit Name'	=> 'Day',						'AllowPrefix'	=> False	),
											  'hr'		=> array(	'Group'	=> 'Time',			'Unit Name'	=> 'Hour',						'AllowPrefix'	=> False	),
											  'mn'		=> array(	'Group'	=> 'Time',			'Unit Name'	=> 'Minute',					'AllowPrefix'	=> False	),
											  'sec'		=> array(	'Group'	=> 'Time',			'Unit Name'	=> 'Second',					'AllowPrefix'	=> True		),
											  'Pa'		=> array(	'Group'	=> 'Pressure',		'Unit Name'	=> 'Pascal',					'AllowPrefix'	=> True		),
											  'p'		=> array(	'Group'	=> 'Pressure',		'Unit Name'	=> 'Pascal',					'AllowPrefix'	=> True		),
											  'atm'		=> array(	'Group'	=> 'Pressure',		'Unit Name'	=> 'Atmosphere',				'AllowPrefix'	=> True		),
											  'at'		=> array(	'Group'	=> 'Pressure',		'Unit Name'	=> 'Atmosphere',				'AllowPrefix'	=> True		),
											  'mmHg'	=> array(	'Group'	=> 'Pressure',		'Unit Name'	=> 'mm of Mercury',				'AllowPrefix'	=> True		),
											  'N'		=> array(	'Group'	=> 'Force',			'Unit Name'	=> 'Newton',					'AllowPrefix'	=> True		),
											  'dyn'		=> array(	'Group'	=> 'Force',			'Unit Name'	=> 'Dyne',						'AllowPrefix'	=> True		),
											  'dy'		=> array(	'Group'	=> 'Force',			'Unit Name'	=> 'Dyne',						'AllowPrefix'	=> True		),
											  'lbf'		=> array(	'Group'	=> 'Force',			'Unit Name'	=> 'Pound force',				'AllowPrefix'	=> False	),
											  'J'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Joule',						'AllowPrefix'	=> True		),
											  'e'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Erg',						'AllowPrefix'	=> True		),
											  'c'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Thermodynamic calorie',		'AllowPrefix'	=> True		),
											  'cal'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'IT calorie',				'AllowPrefix'	=> True		),
											  'eV'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Electron volt',				'AllowPrefix'	=> True		),
											  'ev'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Electron volt',				'AllowPrefix'	=> True		),
											  'HPh'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Horsepower-hour',			'AllowPrefix'	=> False	),
											  'hh'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Horsepower-hour',			'AllowPrefix'	=> False	),
											  'Wh'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Watt-hour',					'AllowPrefix'	=> True		),
											  'wh'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Watt-hour',					'AllowPrefix'	=> True		),
											  'flb'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'Foot-pound',				'AllowPrefix'	=> False	),
											  'BTU'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'BTU',						'AllowPrefix'	=> False	),
											  'btu'		=> array(	'Group'	=> 'Energy',		'Unit Name'	=> 'BTU',						'AllowPrefix'	=> False	),
											  'HP'		=> array(	'Group'	=> 'Power',			'Unit Name'	=> 'Horsepower',				'AllowPrefix'	=> False	),
											  'h'		=> array(	'Group'	=> 'Power',			'Unit Name'	=> 'Horsepower',				'AllowPrefix'	=> False	),
											  'W'		=> array(	'Group'	=> 'Power',			'Unit Name'	=> 'Watt',						'AllowPrefix'	=> True		),
											  'w'		=> array(	'Group'	=> 'Power',			'Unit Name'	=> 'Watt',						'AllowPrefix'	=> True		),
											  'T'		=> array(	'Group'	=> 'Magnetism',		'Unit Name'	=> 'Tesla',						'AllowPrefix'	=> True		),
											  'ga'		=> array(	'Group'	=> 'Magnetism',		'Unit Name'	=> 'Gauss',						'AllowPrefix'	=> True		),
											  'C'		=> array(	'Group'	=> 'Temperature',	'Unit Name'	=> 'Celsius',					'AllowPrefix'	=> False	),
											  'cel'		=> array(	'Group'	=> 'Temperature',	'Unit Name'	=> 'Celsius',					'AllowPrefix'	=> False	),
											  'F'		=> array(	'Group'	=> 'Temperature',	'Unit Name'	=> 'Fahrenheit',				'AllowPrefix'	=> False	),
											  'fah'		=> array(	'Group'	=> 'Temperature',	'Unit Name'	=> 'Fahrenheit',				'AllowPrefix'	=> False	),
											  'K'		=> array(	'Group'	=> 'Temperature',	'Unit Name'	=> 'Kelvin',					'AllowPrefix'	=> False	),
											  'kel'		=> array(	'Group'	=> 'Temperature',	'Unit Name'	=> 'Kelvin',					'AllowPrefix'	=> False	),
											  'tsp'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Teaspoon',					'AllowPrefix'	=> False	),
											  'tbs'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Tablespoon',				'AllowPrefix'	=> False	),
											  'oz'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Fluid Ounce',				'AllowPrefix'	=> False	),
											  'cup'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Cup',						'AllowPrefix'	=> False	),
											  'pt'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'U.S. Pint',					'AllowPrefix'	=> False	),
											  'us_pt'	=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'U.S. Pint',					'AllowPrefix'	=> False	),
											  'uk_pt'	=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'U.K. Pint',					'AllowPrefix'	=> False	),
											  'qt'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Quart',						'AllowPrefix'	=> False	),
											  'gal'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Gallon',					'AllowPrefix'	=> False	),
											  'l'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Litre',						'AllowPrefix'	=> True		),
											  'lt'		=> array(	'Group'	=> 'Liquid',		'Unit Name'	=> 'Litre',						'AllowPrefix'	=> True		)
											);

	/**
	 * Details of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM()
	 *
	 * @var mixed[]
	 */
	private static $_conversionMultipliers = array(	'Y'	=> array(	'multiplier'	=> 1E24,	'name'	=> 'yotta'	),
													'Z'	=> array(	'multiplier'	=> 1E21,	'name'	=> 'zetta'	),
													'E'	=> array(	'multiplier'	=> 1E18,	'name'	=> 'exa'	),
													'P'	=> array(	'multiplier'	=> 1E15,	'name'	=> 'peta'	),
													'T'	=> array(	'multiplier'	=> 1E12,	'name'	=> 'tera'	),
													'G'	=> array(	'multiplier'	=> 1E9,		'name'	=> 'giga'	),
													'M'	=> array(	'multiplier'	=> 1E6,		'name'	=> 'mega'	),
													'k'	=> array(	'multiplier'	=> 1E3,		'name'	=> 'kilo'	),
													'h'	=> array(	'multiplier'	=> 1E2,		'name'	=> 'hecto'	),
													'e'	=> array(	'multiplier'	=> 1E1,		'name'	=> 'deka'	),
													'd'	=> array(	'multiplier'	=> 1E-1,	'name'	=> 'deci'	),
													'c'	=> array(	'multiplier'	=> 1E-2,	'name'	=> 'centi'	),
													'm'	=> array(	'multiplier'	=> 1E-3,	'name'	=> 'milli'	),
													'u'	=> array(	'multiplier'	=> 1E-6,	'name'	=> 'micro'	),
													'n'	=> array(	'multiplier'	=> 1E-9,	'name'	=> 'nano'	),
													'p'	=> array(	'multiplier'	=> 1E-12,	'name'	=> 'pico'	),
													'f'	=> array(	'multiplier'	=> 1E-15,	'name'	=> 'femto'	),
													'a'	=> array(	'multiplier'	=> 1E-18,	'name'	=> 'atto'	),
													'z'	=> array(	'multiplier'	=> 1E-21,	'name'	=> 'zepto'	),
													'y'	=> array(	'multiplier'	=> 1E-24,	'name'	=> 'yocto'	)
												 );

	/**
	 * Details of the Units of measure conversion factors, organised by group
	 *
	 * @var mixed[]
	 */
	private static $_unitConversions = array(	'Mass'		=> array(	'g'		=> array(	'g'		=> 1.0,
																							'sg'	=> 6.85220500053478E-05,
																							'lbm'	=> 2.20462291469134E-03,
																							'u'		=> 6.02217000000000E+23,
																							'ozm'	=> 3.52739718003627E-02
																						),
																		'sg'	=> array(	'g'		=> 1.45938424189287E+04,
																							'sg'	=> 1.0,
																							'lbm'	=> 3.21739194101647E+01,
																							'u'		=> 8.78866000000000E+27,
																							'ozm'	=> 5.14782785944229E+02
																						),
																		'lbm'	=> array(	'g'		=> 4.5359230974881148E+02,
																							'sg'	=> 3.10810749306493E-02,
																							'lbm'	=> 1.0,
																							'u'		=> 2.73161000000000E+26,
																							'ozm'	=> 1.60000023429410E+01
																						),
																		'u'		=> array(	'g'		=> 1.66053100460465E-24,
																							'sg'	=> 1.13782988532950E-28,
																							'lbm'	=> 3.66084470330684E-27,
																							'u'		=> 1.0,
																							'ozm'	=> 5.85735238300524E-26
																						),
																		'ozm'	=> array(	'g'		=> 2.83495152079732E+01,
																							'sg'	=> 1.94256689870811E-03,
																							'lbm'	=> 6.24999908478882E-02,
																							'u'		=> 1.70725600000000E+25,
																							'ozm'	=> 1.0
																						)
																	),
												'Distance'	=> array(	'm'		=> array(	'm'		=> 1.0,
																							'mi'	=> 6.21371192237334E-04,
																							'Nmi'	=> 5.39956803455724E-04,
																							'in'	=> 3.93700787401575E+01,
																							'ft'	=> 3.28083989501312E+00,
																							'yd'	=> 1.09361329797891E+00,
																							'ang'	=> 1.00000000000000E+10,
																							'Pica'	=> 2.83464566929116E+03
																						),
																		'mi'	=> array(	'm'		=> 1.60934400000000E+03,
																							'mi'	=> 1.0,
																							'Nmi'	=> 8.68976241900648E-01,
																							'in'	=> 6.33600000000000E+04,
																							'ft'	=> 5.28000000000000E+03,
																							'yd'	=> 1.76000000000000E+03,
																							'ang'	=> 1.60934400000000E+13,
																							'Pica'	=> 4.56191999999971E+06
																						),
																		'Nmi'	=> array(	'm'		=> 1.85200000000000E+03,
																							'mi'	=> 1.15077944802354E+00,
																							'Nmi'	=> 1.0,
																							'in'	=> 7.29133858267717E+04,
																							'ft'	=> 6.07611548556430E+03,
																							'yd'	=> 2.02537182785694E+03,
																							'ang'	=> 1.85200000000000E+13,
																							'Pica'	=> 5.24976377952723E+06
																						),
																		'in'	=> array(	'm'		=> 2.54000000000000E-02,
																							'mi'	=> 1.57828282828283E-05,
																							'Nmi'	=> 1.37149028077754E-05,
																							'in'	=> 1.0,
																							'ft'	=> 8.33333333333333E-02,
																							'yd'	=> 2.77777777686643E-02,
																							'ang'	=> 2.54000000000000E+08,
																							'Pica'	=> 7.19999999999955E+01
																						),
																		'ft'	=> array(	'm'		=> 3.04800000000000E-01,
																							'mi'	=> 1.89393939393939E-04,
																							'Nmi'	=> 1.64578833693305E-04,
																							'in'	=> 1.20000000000000E+01,
																							'ft'	=> 1.0,
																							'yd'	=> 3.33333333223972E-01,
																							'ang'	=> 3.04800000000000E+09,
																							'Pica'	=> 8.63999999999946E+02
																						),
																		'yd'	=> array(	'm'		=> 9.14400000300000E-01,
																							'mi'	=> 5.68181818368230E-04,
																							'Nmi'	=> 4.93736501241901E-04,
																							'in'	=> 3.60000000118110E+01,
																							'ft'	=> 3.00000000000000E+00,
																							'yd'	=> 1.0,
																							'ang'	=> 9.14400000300000E+09,
																							'Pica'	=> 2.59200000085023E+03
																						),
																		'ang'	=> array(	'm'		=> 1.00000000000000E-10,
																							'mi'	=> 6.21371192237334E-14,
																							'Nmi'	=> 5.39956803455724E-14,
																							'in'	=> 3.93700787401575E-09,
																							'ft'	=> 3.28083989501312E-10,
																							'yd'	=> 1.09361329797891E-10,
																							'ang'	=> 1.0,
																							'Pica'	=> 2.83464566929116E-07
																						),
																		'Pica'	=> array(	'm'		=> 3.52777777777800E-04,
																							'mi'	=> 2.19205948372629E-07,
																							'Nmi'	=> 1.90484761219114E-07,
																							'in'	=> 1.38888888888898E-02,
																							'ft'	=> 1.15740740740748E-03,
																							'yd'	=> 3.85802469009251E-04,
																							'ang'	=> 3.52777777777800E+06,
																							'Pica'	=> 1.0
																						)
																	),
												'Time'		=> array(	'yr'	=> array(	'yr'		=> 1.0,
																							'day'		=> 365.25,
																							'hr'		=> 8766.0,
																							'mn'		=> 525960.0,
																							'sec'		=> 31557600.0
																						),
																		'day'	=> array(	'yr'		=> 2.73785078713210E-03,
																							'day'		=> 1.0,
																							'hr'		=> 24.0,
																							'mn'		=> 1440.0,
																							'sec'		=> 86400.0
																						),
																		'hr'	=> array(	'yr'		=> 1.14077116130504E-04,
																							'day'		=> 4.16666666666667E-02,
																							'hr'		=> 1.0,
																							'mn'		=> 60.0,
																							'sec'		=> 3600.0
																						),
																		'mn'	=> array(	'yr'		=> 1.90128526884174E-06,
																							'day'		=> 6.94444444444444E-04,
																							'hr'		=> 1.66666666666667E-02,
																							'mn'		=> 1.0,
																							'sec'		=> 60.0
																						),
																		'sec'	=> array(	'yr'		=> 3.16880878140289E-08,
																							'day'		=> 1.15740740740741E-05,
																							'hr'		=> 2.77777777777778E-04,
																							'mn'		=> 1.66666666666667E-02,
																							'sec'		=> 1.0
																						)
																	),
												'Pressure'	=> array(	'Pa'	=> array(	'Pa'		=> 1.0,
																							'p'			=> 1.0,
																							'atm'		=> 9.86923299998193E-06,
																							'at'		=> 9.86923299998193E-06,
																							'mmHg'		=> 7.50061707998627E-03
																						),
																		'p'		=> array(	'Pa'		=> 1.0,
																							'p'			=> 1.0,
																							'atm'		=> 9.86923299998193E-06,
																							'at'		=> 9.86923299998193E-06,
																							'mmHg'		=> 7.50061707998627E-03
																						),
																		'atm'	=> array(	'Pa'		=> 1.01324996583000E+05,
																							'p'			=> 1.01324996583000E+05,
																							'atm'		=> 1.0,
																							'at'		=> 1.0,
																							'mmHg'		=> 760.0
																						),
																		'at'	=> array(	'Pa'		=> 1.01324996583000E+05,
																							'p'			=> 1.01324996583000E+05,
																							'atm'		=> 1.0,
																							'at'		=> 1.0,
																							'mmHg'		=> 760.0
																						),
																		'mmHg'	=> array(	'Pa'		=> 1.33322363925000E+02,
																							'p'			=> 1.33322363925000E+02,
																							'atm'		=> 1.31578947368421E-03,
																							'at'		=> 1.31578947368421E-03,
																							'mmHg'		=> 1.0
																						)
																	),
												'Force'		=> array(	'N'		=> array(	'N'			=> 1.0,
																							'dyn'		=> 1.0E+5,
																							'dy'		=> 1.0E+5,
																							'lbf'		=> 2.24808923655339E-01
																						),
																		'dyn'	=> array(	'N'			=> 1.0E-5,
																							'dyn'		=> 1.0,
																							'dy'		=> 1.0,
																							'lbf'		=> 2.24808923655339E-06
																						),
																		'dy'	=> array(	'N'			=> 1.0E-5,
																							'dyn'		=> 1.0,
																							'dy'		=> 1.0,
																							'lbf'		=> 2.24808923655339E-06
																						),
																		'lbf'	=> array(	'N'			=> 4.448222,
																							'dyn'		=> 4.448222E+5,
																							'dy'		=> 4.448222E+5,
																							'lbf'		=> 1.0
																						)
																	),
												'Energy'	=> array(	'J'		=> array(	'J'			=> 1.0,
																							'e'			=> 9.99999519343231E+06,
																							'c'			=> 2.39006249473467E-01,
																							'cal'		=> 2.38846190642017E-01,
																							'eV'		=> 6.24145700000000E+18,
																							'ev'		=> 6.24145700000000E+18,
																							'HPh'		=> 3.72506430801000E-07,
																							'hh'		=> 3.72506430801000E-07,
																							'Wh'		=> 2.77777916238711E-04,
																							'wh'		=> 2.77777916238711E-04,
																							'flb'		=> 2.37304222192651E+01,
																							'BTU'		=> 9.47815067349015E-04,
																							'btu'		=> 9.47815067349015E-04
																						),
																		'e'		=> array(	'J'			=> 1.00000048065700E-07,
																							'e'			=> 1.0,
																							'c'			=> 2.39006364353494E-08,
																							'cal'		=> 2.38846305445111E-08,
																							'eV'		=> 6.24146000000000E+11,
																							'ev'		=> 6.24146000000000E+11,
																							'HPh'		=> 3.72506609848824E-14,
																							'hh'		=> 3.72506609848824E-14,
																							'Wh'		=> 2.77778049754611E-11,
																							'wh'		=> 2.77778049754611E-11,
																							'flb'		=> 2.37304336254586E-06,
																							'BTU'		=> 9.47815522922962E-11,
																							'btu'		=> 9.47815522922962E-11
																						),
																		'c'		=> array(	'J'			=> 4.18399101363672E+00,
																							'e'			=> 4.18398900257312E+07,
																							'c'			=> 1.0,
																							'cal'		=> 9.99330315287563E-01,
																							'eV'		=> 2.61142000000000E+19,
																							'ev'		=> 2.61142000000000E+19,
																							'HPh'		=> 1.55856355899327E-06,
																							'hh'		=> 1.55856355899327E-06,
																							'Wh'		=> 1.16222030532950E-03,
																							'wh'		=> 1.16222030532950E-03,
																							'flb'		=> 9.92878733152102E+01,
																							'BTU'		=> 3.96564972437776E-03,
																							'btu'		=> 3.96564972437776E-03
																						),
																		'cal'	=> array(	'J'			=> 4.18679484613929E+00,
																							'e'			=> 4.18679283372801E+07,
																							'c'			=> 1.00067013349059E+00,
																							'cal'		=> 1.0,
																							'eV'		=> 2.61317000000000E+19,
																							'ev'		=> 2.61317000000000E+19,
																							'HPh'		=> 1.55960800463137E-06,
																							'hh'		=> 1.55960800463137E-06,
																							'Wh'		=> 1.16299914807955E-03,
																							'wh'		=> 1.16299914807955E-03,
																							'flb'		=> 9.93544094443283E+01,
																							'BTU'		=> 3.96830723907002E-03,
																							'btu'		=> 3.96830723907002E-03
																						),
																		'eV'	=> array(	'J'			=> 1.60219000146921E-19,
																							'e'			=> 1.60218923136574E-12,
																							'c'			=> 3.82933423195043E-20,
																							'cal'		=> 3.82676978535648E-20,
																							'eV'		=> 1.0,
																							'ev'		=> 1.0,
																							'HPh'		=> 5.96826078912344E-26,
																							'hh'		=> 5.96826078912344E-26,
																							'Wh'		=> 4.45053000026614E-23,
																							'wh'		=> 4.45053000026614E-23,
																							'flb'		=> 3.80206452103492E-18,
																							'BTU'		=> 1.51857982414846E-22,
																							'btu'		=> 1.51857982414846E-22
																						),
																		'ev'	=> array(	'J'			=> 1.60219000146921E-19,
																							'e'			=> 1.60218923136574E-12,
																							'c'			=> 3.82933423195043E-20,
																							'cal'		=> 3.82676978535648E-20,
																							'eV'		=> 1.0,
																							'ev'		=> 1.0,
																							'HPh'		=> 5.96826078912344E-26,
																							'hh'		=> 5.96826078912344E-26,
																							'Wh'		=> 4.45053000026614E-23,
																							'wh'		=> 4.45053000026614E-23,
																							'flb'		=> 3.80206452103492E-18,
																							'BTU'		=> 1.51857982414846E-22,
																							'btu'		=> 1.51857982414846E-22
																						),
																		'HPh'	=> array(	'J'			=> 2.68451741316170E+06,
																							'e'			=> 2.68451612283024E+13,
																							'c'			=> 6.41616438565991E+05,
																							'cal'		=> 6.41186757845835E+05,
																							'eV'		=> 1.67553000000000E+25,
																							'ev'		=> 1.67553000000000E+25,
																							'HPh'		=> 1.0,
																							'hh'		=> 1.0,
																							'Wh'		=> 7.45699653134593E+02,
																							'wh'		=> 7.45699653134593E+02,
																							'flb'		=> 6.37047316692964E+07,
																							'BTU'		=> 2.54442605275546E+03,
																							'btu'		=> 2.54442605275546E+03
																						),
																		'hh'	=> array(	'J'			=> 2.68451741316170E+06,
																							'e'			=> 2.68451612283024E+13,
																							'c'			=> 6.41616438565991E+05,
																							'cal'		=> 6.41186757845835E+05,
																							'eV'		=> 1.67553000000000E+25,
																							'ev'		=> 1.67553000000000E+25,
																							'HPh'		=> 1.0,
																							'hh'		=> 1.0,
																							'Wh'		=> 7.45699653134593E+02,
																							'wh'		=> 7.45699653134593E+02,
																							'flb'		=> 6.37047316692964E+07,
																							'BTU'		=> 2.54442605275546E+03,
																							'btu'		=> 2.54442605275546E+03
																						),
																		'Wh'	=> array(	'J'			=> 3.59999820554720E+03,
																							'e'			=> 3.59999647518369E+10,
																							'c'			=> 8.60422069219046E+02,
																							'cal'		=> 8.59845857713046E+02,
																							'eV'		=> 2.24692340000000E+22,
																							'ev'		=> 2.24692340000000E+22,
																							'HPh'		=> 1.34102248243839E-03,
																							'hh'		=> 1.34102248243839E-03,
																							'Wh'		=> 1.0,
																							'wh'		=> 1.0,
																							'flb'		=> 8.54294774062316E+04,
																							'BTU'		=> 3.41213254164705E+00,
																							'btu'		=> 3.41213254164705E+00
																						),
																		'wh'	=> array(	'J'			=> 3.59999820554720E+03,
																							'e'			=> 3.59999647518369E+10,
																							'c'			=> 8.60422069219046E+02,
																							'cal'		=> 8.59845857713046E+02,
																							'eV'		=> 2.24692340000000E+22,
																							'ev'		=> 2.24692340000000E+22,
																							'HPh'		=> 1.34102248243839E-03,
																							'hh'		=> 1.34102248243839E-03,
																							'Wh'		=> 1.0,
																							'wh'		=> 1.0,
																							'flb'		=> 8.54294774062316E+04,
																							'BTU'		=> 3.41213254164705E+00,
																							'btu'		=> 3.41213254164705E+00
																						),
																		'flb'	=> array(	'J'			=> 4.21400003236424E-02,
																							'e'			=> 4.21399800687660E+05,
																							'c'			=> 1.00717234301644E-02,
																							'cal'		=> 1.00649785509554E-02,
																							'eV'		=> 2.63015000000000E+17,
																							'ev'		=> 2.63015000000000E+17,
																							'HPh'		=> 1.56974211145130E-08,
																							'hh'		=> 1.56974211145130E-08,
																							'Wh'		=> 1.17055614802000E-05,
																							'wh'		=> 1.17055614802000E-05,
																							'flb'		=> 1.0,
																							'BTU'		=> 3.99409272448406E-05,
																							'btu'		=> 3.99409272448406E-05
																						),
																		'BTU'	=> array(	'J'			=> 1.05505813786749E+03,
																							'e'			=> 1.05505763074665E+10,
																							'c'			=> 2.52165488508168E+02,
																							'cal'		=> 2.51996617135510E+02,
																							'eV'		=> 6.58510000000000E+21,
																							'ev'		=> 6.58510000000000E+21,
																							'HPh'		=> 3.93015941224568E-04,
																							'hh'		=> 3.93015941224568E-04,
																							'Wh'		=> 2.93071851047526E-01,
																							'wh'		=> 2.93071851047526E-01,
																							'flb'		=> 2.50369750774671E+04,
																							'BTU'		=> 1.0,
																							'btu'		=> 1.0,
																						),
																		'btu'	=> array(	'J'			=> 1.05505813786749E+03,
																							'e'			=> 1.05505763074665E+10,
																							'c'			=> 2.52165488508168E+02,
																							'cal'		=> 2.51996617135510E+02,
																							'eV'		=> 6.58510000000000E+21,
																							'ev'		=> 6.58510000000000E+21,
																							'HPh'		=> 3.93015941224568E-04,
																							'hh'		=> 3.93015941224568E-04,
																							'Wh'		=> 2.93071851047526E-01,
																							'wh'		=> 2.93071851047526E-01,
																							'flb'		=> 2.50369750774671E+04,
																							'BTU'		=> 1.0,
																							'btu'		=> 1.0,
																						)
																	),
												'Power'		=> array(	'HP'	=> array(	'HP'		=> 1.0,
																							'h'			=> 1.0,
																							'W'			=> 7.45701000000000E+02,
																							'w'			=> 7.45701000000000E+02
																						),
																		'h'		=> array(	'HP'		=> 1.0,
																							'h'			=> 1.0,
																							'W'			=> 7.45701000000000E+02,
																							'w'			=> 7.45701000000000E+02
																						),
																		'W'		=> array(	'HP'		=> 1.34102006031908E-03,
																							'h'			=> 1.34102006031908E-03,
																							'W'			=> 1.0,
																							'w'			=> 1.0
																						),
																		'w'		=> array(	'HP'		=> 1.34102006031908E-03,
																							'h'			=> 1.34102006031908E-03,
																							'W'			=> 1.0,
																							'w'			=> 1.0
																						)
																	),
												'Magnetism'	=> array(	'T'		=> array(	'T'			=> 1.0,
																							'ga'		=> 10000.0
																						),
																		'ga'	=> array(	'T'			=> 0.0001,
																							'ga'		=> 1.0
																						)
																	),
												'Liquid'	=> array(	'tsp'	=> array(	'tsp'		=> 1.0,
																							'tbs'		=> 3.33333333333333E-01,
																							'oz'		=> 1.66666666666667E-01,
																							'cup'		=> 2.08333333333333E-02,
																							'pt'		=> 1.04166666666667E-02,
																							'us_pt'		=> 1.04166666666667E-02,
																							'uk_pt'		=> 8.67558516821960E-03,
																							'qt'		=> 5.20833333333333E-03,
																							'gal'		=> 1.30208333333333E-03,
																							'l'			=> 4.92999408400710E-03,
																							'lt'		=> 4.92999408400710E-03
																						),
																		'tbs'	=> array(	'tsp'		=> 3.00000000000000E+00,
																							'tbs'		=> 1.0,
																							'oz'		=> 5.00000000000000E-01,
																							'cup'		=> 6.25000000000000E-02,
																							'pt'		=> 3.12500000000000E-02,
																							'us_pt'		=> 3.12500000000000E-02,
																							'uk_pt'		=> 2.60267555046588E-02,
																							'qt'		=> 1.56250000000000E-02,
																							'gal'		=> 3.90625000000000E-03,
																							'l'			=> 1.47899822520213E-02,
																							'lt'		=> 1.47899822520213E-02
																						),
																		'oz'	=> array(	'tsp'		=> 6.00000000000000E+00,
																							'tbs'		=> 2.00000000000000E+00,
																							'oz'		=> 1.0,
																							'cup'		=> 1.25000000000000E-01,
																							'pt'		=> 6.25000000000000E-02,
																							'us_pt'		=> 6.25000000000000E-02,
																							'uk_pt'		=> 5.20535110093176E-02,
																							'qt'		=> 3.12500000000000E-02,
																							'gal'		=> 7.81250000000000E-03,
																							'l'			=> 2.95799645040426E-02,
																							'lt'		=> 2.95799645040426E-02
																						),
																		'cup'	=> array(	'tsp'		=> 4.80000000000000E+01,
																							'tbs'		=> 1.60000000000000E+01,
																							'oz'		=> 8.00000000000000E+00,
																							'cup'		=> 1.0,
																							'pt'		=> 5.00000000000000E-01,
																							'us_pt'		=> 5.00000000000000E-01,
																							'uk_pt'		=> 4.16428088074541E-01,
																							'qt'		=> 2.50000000000000E-01,
																							'gal'		=> 6.25000000000000E-02,
																							'l'			=> 2.36639716032341E-01,
																							'lt'		=> 2.36639716032341E-01
																						),
																		'pt'	=> array(	'tsp'		=> 9.60000000000000E+01,
																							'tbs'		=> 3.20000000000000E+01,
																							'oz'		=> 1.60000000000000E+01,
																							'cup'		=> 2.00000000000000E+00,
																							'pt'		=> 1.0,
																							'us_pt'		=> 1.0,
																							'uk_pt'		=> 8.32856176149081E-01,
																							'qt'		=> 5.00000000000000E-01,
																							'gal'		=> 1.25000000000000E-01,
																							'l'			=> 4.73279432064682E-01,
																							'lt'		=> 4.73279432064682E-01
																						),
																		'us_pt'	=> array(	'tsp'		=> 9.60000000000000E+01,
																							'tbs'		=> 3.20000000000000E+01,
																							'oz'		=> 1.60000000000000E+01,
																							'cup'		=> 2.00000000000000E+00,
																							'pt'		=> 1.0,
																							'us_pt'		=> 1.0,
																							'uk_pt'		=> 8.32856176149081E-01,
																							'qt'		=> 5.00000000000000E-01,
																							'gal'		=> 1.25000000000000E-01,
																							'l'			=> 4.73279432064682E-01,
																							'lt'		=> 4.73279432064682E-01
																						),
																		'uk_pt'	=> array(	'tsp'		=> 1.15266000000000E+02,
																							'tbs'		=> 3.84220000000000E+01,
																							'oz'		=> 1.92110000000000E+01,
																							'cup'		=> 2.40137500000000E+00,
																							'pt'		=> 1.20068750000000E+00,
																							'us_pt'		=> 1.20068750000000E+00,
																							'uk_pt'		=> 1.0,
																							'qt'		=> 6.00343750000000E-01,
																							'gal'		=> 1.50085937500000E-01,
																							'l'			=> 5.68260698087162E-01,
																							'lt'		=> 5.68260698087162E-01
																						),
																		'qt'	=> array(	'tsp'		=> 1.92000000000000E+02,
																							'tbs'		=> 6.40000000000000E+01,
																							'oz'		=> 3.20000000000000E+01,
																							'cup'		=> 4.00000000000000E+00,
																							'pt'		=> 2.00000000000000E+00,
																							'us_pt'		=> 2.00000000000000E+00,
																							'uk_pt'		=> 1.66571235229816E+00,
																							'qt'		=> 1.0,
																							'gal'		=> 2.50000000000000E-01,
																							'l'			=> 9.46558864129363E-01,
																							'lt'		=> 9.46558864129363E-01
																						),
																		'gal'	=> array(	'tsp'		=> 7.68000000000000E+02,
																							'tbs'		=> 2.56000000000000E+02,
																							'oz'		=> 1.28000000000000E+02,
																							'cup'		=> 1.60000000000000E+01,
																							'pt'		=> 8.00000000000000E+00,
																							'us_pt'		=> 8.00000000000000E+00,
																							'uk_pt'		=> 6.66284940919265E+00,
																							'qt'		=> 4.00000000000000E+00,
																							'gal'		=> 1.0,
																							'l'			=> 3.78623545651745E+00,
																							'lt'		=> 3.78623545651745E+00
																						),
																		'l'		=> array(	'tsp'		=> 2.02840000000000E+02,
																							'tbs'		=> 6.76133333333333E+01,
																							'oz'		=> 3.38066666666667E+01,
																							'cup'		=> 4.22583333333333E+00,
																							'pt'		=> 2.11291666666667E+00,
																							'us_pt'		=> 2.11291666666667E+00,
																							'uk_pt'		=> 1.75975569552166E+00,
																							'qt'		=> 1.05645833333333E+00,
																							'gal'		=> 2.64114583333333E-01,
																							'l'			=> 1.0,
																							'lt'		=> 1.0
																						),
																		'lt'	=> array(	'tsp'		=> 2.02840000000000E+02,
																							'tbs'		=> 6.76133333333333E+01,
																							'oz'		=> 3.38066666666667E+01,
																							'cup'		=> 4.22583333333333E+00,
																							'pt'		=> 2.11291666666667E+00,
																							'us_pt'		=> 2.11291666666667E+00,
																							'uk_pt'		=> 1.75975569552166E+00,
																							'qt'		=> 1.05645833333333E+00,
																							'gal'		=> 2.64114583333333E-01,
																							'l'			=> 1.0,
																							'lt'		=> 1.0
																						)
																	)
											);


	/**
	 * _parseComplex
	 *
	 * Parses a complex number into its real and imaginary parts, and an I or J suffix
	 *
	 * @param	string		$complexNumber	The complex number
	 * @return	string[]	Indexed on "real", "imaginary" and "suffix"
	 */
	public static function _parseComplex($complexNumber) {
		$workString = (string) $complexNumber;

		$realNumber = $imaginary = 0;
		//	Extract the suffix, if there is one
		$suffix = substr($workString,-1);
		if (!is_numeric($suffix)) {
			$workString = substr($workString,0,-1);
		} else {
			$suffix = '';
		}

		//	Split the input into its Real and Imaginary components
		$leadingSign = 0;
		if (strlen($workString) > 0) {
			$leadingSign = (($workString{0} == '+') || ($workString{0} == '-')) ? 1 : 0;
		}
		$power = '';
		$realNumber = strtok($workString, '+-');
		if (strtoupper(substr($realNumber,-1)) == 'E') {
			$power = strtok('+-');
			++$leadingSign;
		}

		$realNumber = substr($workString,0,strlen($realNumber)+strlen($power)+$leadingSign);

		if ($suffix != '') {
			$imaginary = substr($workString,strlen($realNumber));

			if (($imaginary == '') && (($realNumber == '') || ($realNumber == '+') || ($realNumber == '-'))) {
				$imaginary = $realNumber.'1';
				$realNumber = '0';
			} else if ($imaginary == '') {
				$imaginary = $realNumber;
				$realNumber = '0';
			} elseif (($imaginary == '+') || ($imaginary == '-')) {
				$imaginary .= '1';
			}
		}

		return array( 'real'		=> $realNumber,
					  'imaginary'	=> $imaginary,
					  'suffix'		=> $suffix
					);
	}	//	function _parseComplex()


	/**
	 * Cleans the leading characters in a complex number string
	 *
	 * @param	string		$complexNumber	The complex number to clean
	 * @return	string		The "cleaned" complex number
	 */
	private static function _cleanComplex($complexNumber) {
		if ($complexNumber{0} == '+') $complexNumber = substr($complexNumber,1);
		if ($complexNumber{0} == '0') $complexNumber = substr($complexNumber,1);
		if ($complexNumber{0} == '.') $complexNumber = '0'.$complexNumber;
		if ($complexNumber{0} == '+') $complexNumber = substr($complexNumber,1);
		return $complexNumber;
	}

	/**
	 * Formats a number base string value with leading zeroes
	 *
	 * @param	string		$xVal		The "number" to pad
	 * @param	integer		$places		The length that we want to pad this value
	 * @return	string		The padded "number"
	 */
	private static function _nbrConversionFormat($xVal, $places) {
		if (!is_null($places)) {
			if (strlen($xVal) <= $places) {
				return substr(str_pad($xVal, $places, '0', STR_PAD_LEFT), -10);
			} else {
				return PHPExcel_Calculation_Functions::NaN();
			}
		}

		return substr($xVal, -10);
	}	//	function _nbrConversionFormat()

	/**
	 *	BESSELI
	 *
	 *	Returns the modified Bessel function In(x), which is equivalent to the Bessel function evaluated
	 *		for purely imaginary arguments
	 *
	 *	Excel Function:
	 *		BESSELI(x,ord)
	 *
	 *	@access	public
	 *	@category Engineering Functions
	 *	@param	float		$x		The value at which to evaluate the function.
	 *								If x is nonnumeric, BESSELI returns the #VALUE! error value.
	 *	@param	integer		$ord	The order of the Bessel function.
	 *								If ord is not an integer, it is truncated.
	 *								If $ord is nonnumeric, BESSELI returns the #VALUE! error value.
	 *								If $ord < 0, BESSELI returns the #NUM! error value.
	 *	@return	float
	 *
	 */
	public static function BESSELI($x, $ord) {
		$x	= (is_null($x))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$ord	= (is_null($ord))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($ord);

		if ((is_numeric($x)) && (is_numeric($ord))) {
			$ord	= floor($ord);
			if ($ord < 0) {
				return PHPExcel_Calculation_Functions::NaN();
			}

			if (abs($x) <= 30) {
				$fResult = $fTerm = pow($x / 2, $ord) / PHPExcel_Calculation_MathTrig::FACT($ord);
				$ordK = 1;
				$fSqrX = ($x * $x) / 4;
				do {
					$fTerm *= $fSqrX;
					$fTerm /= ($ordK * ($ordK + $ord));
					$fResult += $fTerm;
				} while ((abs($fTerm) > 1e-12) && (++$ordK < 100));
			} else {
				$f_2_PI = 2 * M_PI;

				$fXAbs = abs($x);
				$fResult = exp($fXAbs) / sqrt($f_2_PI * $fXAbs);
				if (($ord & 1) && ($x < 0)) {
					$fResult = -$fResult;
				}
			}
			return (is_nan($fResult)) ? PHPExcel_Calculation_Functions::NaN() : $fResult;
		}
		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function BESSELI()


	/**
	 *	BESSELJ
	 *
	 *	Returns the Bessel function
	 *
	 *	Excel Function:
	 *		BESSELJ(x,ord)
	 *
	 *	@access	public
	 *	@category Engineering Functions
	 *	@param	float		$x		The value at which to evaluate the function.
	 *								If x is nonnumeric, BESSELJ returns the #VALUE! error value.
	 *	@param	integer		$ord	The order of the Bessel function. If n is not an integer, it is truncated.
	 *								If $ord is nonnumeric, BESSELJ returns the #VALUE! error value.
	 *								If $ord < 0, BESSELJ returns the #NUM! error value.
	 *	@return	float
	 *
	 */
	public static function BESSELJ($x, $ord) {
		$x	= (is_null($x))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$ord	= (is_null($ord))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($ord);

		if ((is_numeric($x)) && (is_numeric($ord))) {
			$ord	= floor($ord);
			if ($ord < 0) {
				return PHPExcel_Calculation_Functions::NaN();
			}

			$fResult = 0;
			if (abs($x) <= 30) {
				$fResult = $fTerm = pow($x / 2, $ord) / PHPExcel_Calculation_MathTrig::FACT($ord);
				$ordK = 1;
				$fSqrX = ($x * $x) / -4;
				do {
					$fTerm *= $fSqrX;
					$fTerm /= ($ordK * ($ordK + $ord));
					$fResult += $fTerm;
				} while ((abs($fTerm) > 1e-12) && (++$ordK < 100));
			} else {
				$f_PI_DIV_2 = M_PI / 2;
				$f_PI_DIV_4 = M_PI / 4;

				$fXAbs = abs($x);
				$fResult = sqrt(M_2DIVPI / $fXAbs) * cos($fXAbs - $ord * $f_PI_DIV_2 - $f_PI_DIV_4);
				if (($ord & 1) && ($x < 0)) {
					$fResult = -$fResult;
				}
			}
			return (is_nan($fResult)) ? PHPExcel_Calculation_Functions::NaN() : $fResult;
		}
		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function BESSELJ()


	private static function _Besselk0($fNum) {
		if ($fNum <= 2) {
			$fNum2 = $fNum * 0.5;
			$y = ($fNum2 * $fNum2);
			$fRet = -log($fNum2) * self::BESSELI($fNum, 0) +
					(-0.57721566 + $y * (0.42278420 + $y * (0.23069756 + $y * (0.3488590e-1 + $y * (0.262698e-2 + $y *
					(0.10750e-3 + $y * 0.74e-5))))));
		} else {
			$y = 2 / $fNum;
			$fRet = exp(-$fNum) / sqrt($fNum) *
					(1.25331414 + $y * (-0.7832358e-1 + $y * (0.2189568e-1 + $y * (-0.1062446e-1 + $y *
					(0.587872e-2 + $y * (-0.251540e-2 + $y * 0.53208e-3))))));
		}
		return $fRet;
	}	//	function _Besselk0()


	private static function _Besselk1($fNum) {
		if ($fNum <= 2) {
			$fNum2 = $fNum * 0.5;
			$y = ($fNum2 * $fNum2);
			$fRet = log($fNum2) * self::BESSELI($fNum, 1) +
					(1 + $y * (0.15443144 + $y * (-0.67278579 + $y * (-0.18156897 + $y * (-0.1919402e-1 + $y *
					(-0.110404e-2 + $y * (-0.4686e-4))))))) / $fNum;
		} else {
			$y = 2 / $fNum;
			$fRet = exp(-$fNum) / sqrt($fNum) *
					(1.25331414 + $y * (0.23498619 + $y * (-0.3655620e-1 + $y * (0.1504268e-1 + $y * (-0.780353e-2 + $y *
					(0.325614e-2 + $y * (-0.68245e-3)))))));
		}
		return $fRet;
	}	//	function _Besselk1()


	/**
	 *	BESSELK
	 *
	 *	Returns the modified Bessel function Kn(x), which is equivalent to the Bessel functions evaluated
	 *		for purely imaginary arguments.
	 *
	 *	Excel Function:
	 *		BESSELK(x,ord)
	 *
	 *	@access	public
	 *	@category Engineering Functions
	 *	@param	float		$x		The value at which to evaluate the function.
	 *								If x is nonnumeric, BESSELK returns the #VALUE! error value.
	 *	@param	integer		$ord	The order of the Bessel function. If n is not an integer, it is truncated.
	 *								If $ord is nonnumeric, BESSELK returns the #VALUE! error value.
	 *								If $ord < 0, BESSELK returns the #NUM! error value.
	 *	@return	float
	 *
	 */
	public static function BESSELK($x, $ord) {
		$x		= (is_null($x))		? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$ord	= (is_null($ord))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($ord);

		if ((is_numeric($x)) && (is_numeric($ord))) {
			if (($ord < 0) || ($x == 0.0)) {
				return PHPExcel_Calculation_Functions::NaN();
			}

			switch(floor($ord)) {
				case 0 :	return self::_Besselk0($x);
							break;
				case 1 :	return self::_Besselk1($x);
							break;
				default :	$fTox	= 2 / $x;
							$fBkm	= self::_Besselk0($x);
							$fBk	= self::_Besselk1($x);
							for ($n = 1; $n < $ord; ++$n) {
								$fBkp	= $fBkm + $n * $fTox * $fBk;
								$fBkm	= $fBk;
								$fBk	= $fBkp;
							}
			}
			return (is_nan($fBk)) ? PHPExcel_Calculation_Functions::NaN() : $fBk;
		}
		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function BESSELK()


	private static function _Bessely0($fNum) {
		if ($fNum < 8.0) {
			$y = ($fNum * $fNum);
			$f1 = -2957821389.0 + $y * (7062834065.0 + $y * (-512359803.6 + $y * (10879881.29 + $y * (-86327.92757 + $y * 228.4622733))));
			$f2 = 40076544269.0 + $y * (745249964.8 + $y * (7189466.438 + $y * (47447.26470 + $y * (226.1030244 + $y))));
			$fRet = $f1 / $f2 + 0.636619772 * self::BESSELJ($fNum, 0) * log($fNum);
		} else {
			$z = 8.0 / $fNum;
			$y = ($z * $z);
			$xx = $fNum - 0.785398164;
			$f1 = 1 + $y * (-0.1098628627e-2 + $y * (0.2734510407e-4 + $y * (-0.2073370639e-5 + $y * 0.2093887211e-6)));
			$f2 = -0.1562499995e-1 + $y * (0.1430488765e-3 + $y * (-0.6911147651e-5 + $y * (0.7621095161e-6 + $y * (-0.934945152e-7))));
			$fRet = sqrt(0.636619772 / $fNum) * (sin($xx) * $f1 + $z * cos($xx) * $f2);
		}
		return $fRet;
	}	//	function _Bessely0()


	private static function _Bessely1($fNum) {
		if ($fNum < 8.0) {
			$y = ($fNum * $fNum);
			$f1 = $fNum * (-0.4900604943e13 + $y * (0.1275274390e13 + $y * (-0.5153438139e11 + $y * (0.7349264551e9 + $y *
				(-0.4237922726e7 + $y * 0.8511937935e4)))));
			$f2 = 0.2499580570e14 + $y * (0.4244419664e12 + $y * (0.3733650367e10 + $y * (0.2245904002e8 + $y *
				(0.1020426050e6 + $y * (0.3549632885e3 + $y)))));
			$fRet = $f1 / $f2 + 0.636619772 * ( self::BESSELJ($fNum, 1) * log($fNum) - 1 / $fNum);
		} else {
			$fRet = sqrt(0.636619772 / $fNum) * sin($fNum - 2.356194491);
		}
		return $fRet;
	}	//	function _Bessely1()


	/**
	 *	BESSELY
	 *
	 *	Returns the Bessel function, which is also called the Weber function or the Neumann function.
	 *
	 *	Excel Function:
	 *		BESSELY(x,ord)
	 *
	 *	@access	public
	 *	@category Engineering Functions
	 *	@param	float		$x		The value at which to evaluate the function.
	 *								If x is nonnumeric, BESSELK returns the #VALUE! error value.
	 *	@param	integer		$ord	The order of the Bessel function. If n is not an integer, it is truncated.
	 *								If $ord is nonnumeric, BESSELK returns the #VALUE! error value.
	 *								If $ord < 0, BESSELK returns the #NUM! error value.
	 *
	 *	@return	float
	 */
	public static function BESSELY($x, $ord) {
		$x		= (is_null($x))		? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$ord	= (is_null($ord))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($ord);

		if ((is_numeric($x)) && (is_numeric($ord))) {
			if (($ord < 0) || ($x == 0.0)) {
				return PHPExcel_Calculation_Functions::NaN();
			}

			switch(floor($ord)) {
				case 0 :	return self::_Bessely0($x);
							break;
				case 1 :	return self::_Bessely1($x);
							break;
				default:	$fTox	= 2 / $x;
							$fBym	= self::_Bessely0($x);
							$fBy	= self::_Bessely1($x);
							for ($n = 1; $n < $ord; ++$n) {
								$fByp	= $n * $fTox * $fBy - $fBym;
								$fBym	= $fBy;
								$fBy	= $fByp;
							}
			}
			return (is_nan($fBy)) ? PHPExcel_Calculation_Functions::NaN() : $fBy;
		}
		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function BESSELY()


	/**
	 * BINTODEC
	 *
	 * Return a binary value as decimal.
	 *
	 * Excel Function:
	 *		BIN2DEC(x)
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The binary number (as a string) that you want to convert. The number
	 *								cannot contain more than 10 characters (10 bits). The most significant
	 *								bit of number is the sign bit. The remaining 9 bits are magnitude bits.
	 *								Negative numbers are represented using two's-complement notation.
	 *								If number is not a valid binary number, or if number contains more than
	 *								10 characters (10 bits), BIN2DEC returns the #NUM! error value.
	 * @return	string
	 */
	public static function BINTODEC($x) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);

		if (is_bool($x)) {
			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
				$x = (int) $x;
			} else {
				return PHPExcel_Calculation_Functions::VALUE();
			}
		}
		if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
			$x = floor($x);
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[01]/',$x,$out)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		if (strlen($x) > 10) {
			return PHPExcel_Calculation_Functions::NaN();
		} elseif (strlen($x) == 10) {
			//	Two's Complement
			$x = substr($x,-9);
			return '-'.(512-bindec($x));
		}
		return bindec($x);
	}	//	function BINTODEC()


	/**
	 * BINTOHEX
	 *
	 * Return a binary value as hex.
	 *
	 * Excel Function:
	 *		BIN2HEX(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The binary number (as a string) that you want to convert. The number
	 *								cannot contain more than 10 characters (10 bits). The most significant
	 *								bit of number is the sign bit. The remaining 9 bits are magnitude bits.
	 *								Negative numbers are represented using two's-complement notation.
	 *								If number is not a valid binary number, or if number contains more than
	 *								10 characters (10 bits), BIN2HEX returns the #NUM! error value.
	 * @param	integer		$places	The number of characters to use. If places is omitted, BIN2HEX uses the
	 *								minimum number of characters necessary. Places is useful for padding the
	 *								return value with leading 0s (zeros).
	 *								If places is not an integer, it is truncated.
	 *								If places is nonnumeric, BIN2HEX returns the #VALUE! error value.
	 *								If places is negative, BIN2HEX returns the #NUM! error value.
	 * @return	string
	 */
	public static function BINTOHEX($x, $places=NULL) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
				$x = (int) $x;
			} else {
				return PHPExcel_Calculation_Functions::VALUE();
			}
		}
		if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
			$x = floor($x);
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[01]/',$x,$out)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		if (strlen($x) > 10) {
			return PHPExcel_Calculation_Functions::NaN();
		} elseif (strlen($x) == 10) {
			//	Two's Complement
			return str_repeat('F',8).substr(strtoupper(dechex(bindec(substr($x,-9)))),-2);
		}
		$hexVal = (string) strtoupper(dechex(bindec($x)));

		return self::_nbrConversionFormat($hexVal,$places);
	}	//	function BINTOHEX()


	/**
	 * BINTOOCT
	 *
	 * Return a binary value as octal.
	 *
	 * Excel Function:
	 *		BIN2OCT(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The binary number (as a string) that you want to convert. The number
	 *								cannot contain more than 10 characters (10 bits). The most significant
	 *								bit of number is the sign bit. The remaining 9 bits are magnitude bits.
	 *								Negative numbers are represented using two's-complement notation.
	 *								If number is not a valid binary number, or if number contains more than
	 *								10 characters (10 bits), BIN2OCT returns the #NUM! error value.
	 * @param	integer		$places	The number of characters to use. If places is omitted, BIN2OCT uses the
	 *								minimum number of characters necessary. Places is useful for padding the
	 *								return value with leading 0s (zeros).
	 *								If places is not an integer, it is truncated.
	 *								If places is nonnumeric, BIN2OCT returns the #VALUE! error value.
	 *								If places is negative, BIN2OCT returns the #NUM! error value.
	 * @return	string
	 */
	public static function BINTOOCT($x, $places=NULL) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
				$x = (int) $x;
			} else {
				return PHPExcel_Calculation_Functions::VALUE();
			}
		}
		if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_GNUMERIC) {
			$x = floor($x);
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[01]/',$x,$out)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		if (strlen($x) > 10) {
			return PHPExcel_Calculation_Functions::NaN();
		} elseif (strlen($x) == 10) {
			//	Two's Complement
			return str_repeat('7',7).substr(strtoupper(decoct(bindec(substr($x,-9)))),-3);
		}
		$octVal = (string) decoct(bindec($x));

		return self::_nbrConversionFormat($octVal,$places);
	}	//	function BINTOOCT()


	/**
	 * DECTOBIN
	 *
	 * Return a decimal value as binary.
	 *
	 * Excel Function:
	 *		DEC2BIN(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The decimal integer you want to convert. If number is negative,
	 *								valid place values are ignored and DEC2BIN returns a 10-character
	 *								(10-bit) binary number in which the most significant bit is the sign
	 *								bit. The remaining 9 bits are magnitude bits. Negative numbers are
	 *								represented using two's-complement notation.
	 *								If number < -512 or if number > 511, DEC2BIN returns the #NUM! error
	 *								value.
	 *								If number is nonnumeric, DEC2BIN returns the #VALUE! error value.
	 *								If DEC2BIN requires more than places characters, it returns the #NUM!
	 *								error value.
	 * @param	integer		$places	The number of characters to use. If places is omitted, DEC2BIN uses
	 *								the minimum number of characters necessary. Places is useful for
	 *								padding the return value with leading 0s (zeros).
	 *								If places is not an integer, it is truncated.
	 *								If places is nonnumeric, DEC2BIN returns the #VALUE! error value.
	 *								If places is zero or negative, DEC2BIN returns the #NUM! error value.
	 * @return	string
	 */
	public static function DECTOBIN($x, $places=NULL) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
				$x = (int) $x;
			} else {
				return PHPExcel_Calculation_Functions::VALUE();
			}
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[-0123456789.]/',$x,$out)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) floor($x);
		$r = decbin($x);
		if (strlen($r) == 32) {
			//	Two's Complement
			$r = substr($r,-10);
		} elseif (strlen($r) > 11) {
			return PHPExcel_Calculation_Functions::NaN();
		}

		return self::_nbrConversionFormat($r,$places);
	}	//	function DECTOBIN()


	/**
	 * DECTOHEX
	 *
	 * Return a decimal value as hex.
	 *
	 * Excel Function:
	 *		DEC2HEX(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The decimal integer you want to convert. If number is negative,
	 *								places is ignored and DEC2HEX returns a 10-character (40-bit)
	 *								hexadecimal number in which the most significant bit is the sign
	 *								bit. The remaining 39 bits are magnitude bits. Negative numbers
	 *								are represented using two's-complement notation.
	 *								If number < -549,755,813,888 or if number > 549,755,813,887,
	 *								DEC2HEX returns the #NUM! error value.
	 *								If number is nonnumeric, DEC2HEX returns the #VALUE! error value.
	 *								If DEC2HEX requires more than places characters, it returns the
	 *								#NUM! error value.
	 * @param	integer		$places	The number of characters to use. If places is omitted, DEC2HEX uses
	 *								the minimum number of characters necessary. Places is useful for
	 *								padding the return value with leading 0s (zeros).
	 *								If places is not an integer, it is truncated.
	 *								If places is nonnumeric, DEC2HEX returns the #VALUE! error value.
	 *								If places is zero or negative, DEC2HEX returns the #NUM! error value.
	 * @return	string
	 */
	public static function DECTOHEX($x, $places=null) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
				$x = (int) $x;
			} else {
				return PHPExcel_Calculation_Functions::VALUE();
			}
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[-0123456789.]/',$x,$out)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) floor($x);
		$r = strtoupper(dechex($x));
		if (strlen($r) == 8) {
			//	Two's Complement
			$r = 'FF'.$r;
		}

		return self::_nbrConversionFormat($r,$places);
	}	//	function DECTOHEX()


	/**
	 * DECTOOCT
	 *
	 * Return an decimal value as octal.
	 *
	 * Excel Function:
	 *		DEC2OCT(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The decimal integer you want to convert. If number is negative,
	 *								places is ignored and DEC2OCT returns a 10-character (30-bit)
	 *								octal number in which the most significant bit is the sign bit.
	 *								The remaining 29 bits are magnitude bits. Negative numbers are
	 *								represented using two's-complement notation.
	 *								If number < -536,870,912 or if number > 536,870,911, DEC2OCT
	 *								returns the #NUM! error value.
	 *								If number is nonnumeric, DEC2OCT returns the #VALUE! error value.
	 *								If DEC2OCT requires more than places characters, it returns the
	 *								#NUM! error value.
	 * @param	integer		$places	The number of characters to use. If places is omitted, DEC2OCT uses
	 *								the minimum number of characters necessary. Places is useful for
	 *								padding the return value with leading 0s (zeros).
	 *								If places is not an integer, it is truncated.
	 *								If places is nonnumeric, DEC2OCT returns the #VALUE! error value.
	 *								If places is zero or negative, DEC2OCT returns the #NUM! error value.
	 * @return	string
	 */
	public static function DECTOOCT($x, $places=null) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			if (PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE) {
				$x = (int) $x;
			} else {
				return PHPExcel_Calculation_Functions::VALUE();
			}
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[-0123456789.]/',$x,$out)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) floor($x);
		$r = decoct($x);
		if (strlen($r) == 11) {
			//	Two's Complement
			$r = substr($r,-10);
		}

		return self::_nbrConversionFormat($r,$places);
	}	//	function DECTOOCT()


	/**
	 * HEXTOBIN
	 *
	 * Return a hex value as binary.
	 *
	 * Excel Function:
	 *		HEX2BIN(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x			the hexadecimal number you want to convert. Number cannot
	 *									contain more than 10 characters. The most significant bit of
	 *									number is the sign bit (40th bit from the right). The remaining
	 *									9 bits are magnitude bits. Negative numbers are represented
	 *									using two's-complement notation.
	 *									If number is negative, HEX2BIN ignores places and returns a
	 *									10-character binary number.
	 *									If number is negative, it cannot be less than FFFFFFFE00, and
	 *									if number is positive, it cannot be greater than 1FF.
	 *									If number is not a valid hexadecimal number, HEX2BIN returns
	 *									the #NUM! error value.
	 *									If HEX2BIN requires more than places characters, it returns
	 *									the #NUM! error value.
	 * @param	integer		$places		The number of characters to use. If places is omitted,
	 *									HEX2BIN uses the minimum number of characters necessary. Places
	 *									is useful for padding the return value with leading 0s (zeros).
	 *									If places is not an integer, it is truncated.
	 *									If places is nonnumeric, HEX2BIN returns the #VALUE! error value.
	 *									If places is negative, HEX2BIN returns the #NUM! error value.
	 * @return	string
	 */
	public static function HEXTOBIN($x, $places=null) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[0123456789ABCDEF]/',strtoupper($x),$out)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		$binVal = decbin(hexdec($x));

		return substr(self::_nbrConversionFormat($binVal,$places),-10);
	}	//	function HEXTOBIN()


	/**
	 * HEXTODEC
	 *
	 * Return a hex value as decimal.
	 *
	 * Excel Function:
	 *		HEX2DEC(x)
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The hexadecimal number you want to convert. This number cannot
	 *								contain more than 10 characters (40 bits). The most significant
	 *								bit of number is the sign bit. The remaining 39 bits are magnitude
	 *								bits. Negative numbers are represented using two's-complement
	 *								notation.
	 *								If number is not a valid hexadecimal number, HEX2DEC returns the
	 *								#NUM! error value.
	 * @return	string
	 */
	public static function HEXTODEC($x) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);

		if (is_bool($x)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[0123456789ABCDEF]/',strtoupper($x),$out)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		return hexdec($x);
	}	//	function HEXTODEC()


	/**
	 * HEXTOOCT
	 *
	 * Return a hex value as octal.
	 *
	 * Excel Function:
	 *		HEX2OCT(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x			The hexadecimal number you want to convert. Number cannot
	 *									contain more than 10 characters. The most significant bit of
	 *									number is the sign bit. The remaining 39 bits are magnitude
	 *									bits. Negative numbers are represented using two's-complement
	 *									notation.
	 *									If number is negative, HEX2OCT ignores places and returns a
	 *									10-character octal number.
	 *									If number is negative, it cannot be less than FFE0000000, and
	 *									if number is positive, it cannot be greater than 1FFFFFFF.
	 *									If number is not a valid hexadecimal number, HEX2OCT returns
	 *									the #NUM! error value.
	 *									If HEX2OCT requires more than places characters, it returns
	 *									the #NUM! error value.
	 * @param	integer		$places		The number of characters to use. If places is omitted, HEX2OCT
	 *									uses the minimum number of characters necessary. Places is
	 *									useful for padding the return value with leading 0s (zeros).
	 *									If places is not an integer, it is truncated.
	 *									If places is nonnumeric, HEX2OCT returns the #VALUE! error
	 *									value.
	 *									If places is negative, HEX2OCT returns the #NUM! error value.
	 * @return	string
	 */
	public static function HEXTOOCT($x, $places=null) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) $x;
		if (strlen($x) > preg_match_all('/[0123456789ABCDEF]/',strtoupper($x),$out)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		$octVal = decoct(hexdec($x));

		return self::_nbrConversionFormat($octVal,$places);
	}	//	function HEXTOOCT()


	/**
	 * OCTTOBIN
	 *
	 * Return an octal value as binary.
	 *
	 * Excel Function:
	 *		OCT2BIN(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x			The octal number you want to convert. Number may not
	 *									contain more than 10 characters. The most significant
	 *									bit of number is the sign bit. The remaining 29 bits
	 *									are magnitude bits. Negative numbers are represented
	 *									using two's-complement notation.
	 *									If number is negative, OCT2BIN ignores places and returns
	 *									a 10-character binary number.
	 *									If number is negative, it cannot be less than 7777777000,
	 *									and if number is positive, it cannot be greater than 777.
	 *									If number is not a valid octal number, OCT2BIN returns
	 *									the #NUM! error value.
	 *									If OCT2BIN requires more than places characters, it
	 *									returns the #NUM! error value.
	 * @param	integer		$places		The number of characters to use. If places is omitted,
	 *									OCT2BIN uses the minimum number of characters necessary.
	 *									Places is useful for padding the return value with
	 *									leading 0s (zeros).
	 *									If places is not an integer, it is truncated.
	 *									If places is nonnumeric, OCT2BIN returns the #VALUE!
	 *									error value.
	 *									If places is negative, OCT2BIN returns the #NUM! error
	 *									value.
	 * @return	string
	 */
	public static function OCTTOBIN($x, $places=null) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) $x;
		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		$r = decbin(octdec($x));

		return self::_nbrConversionFormat($r,$places);
	}	//	function OCTTOBIN()


	/**
	 * OCTTODEC
	 *
	 * Return an octal value as decimal.
	 *
	 * Excel Function:
	 *		OCT2DEC(x)
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x		The octal number you want to convert. Number may not contain
	 *								more than 10 octal characters (30 bits). The most significant
	 *								bit of number is the sign bit. The remaining 29 bits are
	 *								magnitude bits. Negative numbers are represented using
	 *								two's-complement notation.
	 *								If number is not a valid octal number, OCT2DEC returns the
	 *								#NUM! error value.
	 * @return	string
	 */
	public static function OCTTODEC($x) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);

		if (is_bool($x)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) $x;
		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		return octdec($x);
	}	//	function OCTTODEC()


	/**
	 * OCTTOHEX
	 *
	 * Return an octal value as hex.
	 *
	 * Excel Function:
	 *		OCT2HEX(x[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$x			The octal number you want to convert. Number may not contain
	 *									more than 10 octal characters (30 bits). The most significant
	 *									bit of number is the sign bit. The remaining 29 bits are
	 *									magnitude bits. Negative numbers are represented using
	 *									two's-complement notation.
	 *									If number is negative, OCT2HEX ignores places and returns a
	 *									10-character hexadecimal number.
	 *									If number is not a valid octal number, OCT2HEX returns the
	 *									#NUM! error value.
	 *									If OCT2HEX requires more than places characters, it returns
	 *									the #NUM! error value.
	 * @param	integer		$places		The number of characters to use. If places is omitted, OCT2HEX
	 *									uses the minimum number of characters necessary. Places is useful
	 *									for padding the return value with leading 0s (zeros).
	 *									If places is not an integer, it is truncated.
	 *									If places is nonnumeric, OCT2HEX returns the #VALUE! error value.
	 *									If places is negative, OCT2HEX returns the #NUM! error value.
	 * @return	string
	 */
	public static function OCTTOHEX($x, $places=null) {
		$x	= PHPExcel_Calculation_Functions::flattenSingleValue($x);
		$places	= PHPExcel_Calculation_Functions::flattenSingleValue($places);

		if (is_bool($x)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$x = (string) $x;
		if (preg_match_all('/[01234567]/',$x,$out) != strlen($x)) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		$hexVal = strtoupper(dechex(octdec($x)));

		return self::_nbrConversionFormat($hexVal,$places);
	}	//	function OCTTOHEX()


	/**
	 * COMPLEX
	 *
	 * Converts real and imaginary coefficients into a complex number of the form x + yi or x + yj.
	 *
	 * Excel Function:
	 *		COMPLEX(realNumber,imaginary[,places])
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	float		$realNumber		The real coefficient of the complex number.
	 * @param	float		$imaginary		The imaginary coefficient of the complex number.
	 * @param	string		$suffix			The suffix for the imaginary component of the complex number.
	 *										If omitted, the suffix is assumed to be "i".
	 * @return	string
	 */
	public static function COMPLEX($realNumber=0.0, $imaginary=0.0, $suffix='i') {
		$realNumber	= (is_null($realNumber))	? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($realNumber);
		$imaginary	= (is_null($imaginary))		? 0.0 :	PHPExcel_Calculation_Functions::flattenSingleValue($imaginary);
		$suffix		= (is_null($suffix))		? 'i' :	PHPExcel_Calculation_Functions::flattenSingleValue($suffix);

		if (((is_numeric($realNumber)) && (is_numeric($imaginary))) &&
			(($suffix == 'i') || ($suffix == 'j') || ($suffix == ''))) {
			$realNumber	= (float) $realNumber;
			$imaginary	= (float) $imaginary;

			if ($suffix == '') $suffix = 'i';
			if ($realNumber == 0.0) {
				if ($imaginary == 0.0) {
					return (string) '0';
				} elseif ($imaginary == 1.0) {
					return (string) $suffix;
				} elseif ($imaginary == -1.0) {
					return (string) '-'.$suffix;
				}
				return (string) $imaginary.$suffix;
			} elseif ($imaginary == 0.0) {
				return (string) $realNumber;
			} elseif ($imaginary == 1.0) {
				return (string) $realNumber.'+'.$suffix;
			} elseif ($imaginary == -1.0) {
				return (string) $realNumber.'-'.$suffix;
			}
			if ($imaginary > 0) { $imaginary = (string) '+'.$imaginary; }
			return (string) $realNumber.$imaginary.$suffix;
		}

		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function COMPLEX()


	/**
	 * IMAGINARY
	 *
	 * Returns the imaginary coefficient of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMAGINARY(complexNumber)
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$complexNumber	The complex number for which you want the imaginary
	 * 										coefficient.
	 * @return	float
	 */
	public static function IMAGINARY($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);
		return $parsedComplex['imaginary'];
	}	//	function IMAGINARY()


	/**
	 * IMREAL
	 *
	 * Returns the real coefficient of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMREAL(complexNumber)
	 *
	 * @access	public
	 * @category Engineering Functions
	 * @param	string		$complexNumber	The complex number for which you want the real coefficient.
	 * @return	float
	 */
	public static function IMREAL($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);
		return $parsedComplex['real'];
	}	//	function IMREAL()


	/**
	 * IMABS
	 *
	 * Returns the absolute value (modulus) of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMABS(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the absolute value.
	 * @return	float
	 */
	public static function IMABS($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		return sqrt(($parsedComplex['real'] * $parsedComplex['real']) + ($parsedComplex['imaginary'] * $parsedComplex['imaginary']));
	}	//	function IMABS()


	/**
	 * IMARGUMENT
	 *
	 * Returns the argument theta of a complex number, i.e. the angle in radians from the real
	 * axis to the representation of the number in polar coordinates.
	 *
	 * Excel Function:
	 *		IMARGUMENT(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the argument theta.
	 * @return	float
	 */
	public static function IMARGUMENT($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if ($parsedComplex['real'] == 0.0) {
			if ($parsedComplex['imaginary'] == 0.0) {
				return 0.0;
			} elseif($parsedComplex['imaginary'] < 0.0) {
				return M_PI / -2;
			} else {
				return M_PI / 2;
			}
		} elseif ($parsedComplex['real'] > 0.0) {
			return atan($parsedComplex['imaginary'] / $parsedComplex['real']);
		} elseif ($parsedComplex['imaginary'] < 0.0) {
			return 0 - (M_PI - atan(abs($parsedComplex['imaginary']) / abs($parsedComplex['real'])));
		} else {
			return M_PI - atan($parsedComplex['imaginary'] / abs($parsedComplex['real']));
		}
	}	//	function IMARGUMENT()


	/**
	 * IMCONJUGATE
	 *
	 * Returns the complex conjugate of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMCONJUGATE(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the conjugate.
	 * @return	string
	 */
	public static function IMCONJUGATE($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if ($parsedComplex['imaginary'] == 0.0) {
			return $parsedComplex['real'];
		} else {
			return self::_cleanComplex( self::COMPLEX( $parsedComplex['real'],
													   0 - $parsedComplex['imaginary'],
													   $parsedComplex['suffix']
													 )
									  );
		}
	}	//	function IMCONJUGATE()


	/**
	 * IMCOS
	 *
	 * Returns the cosine of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMCOS(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the cosine.
	 * @return	string|float
	 */
	public static function IMCOS($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if ($parsedComplex['imaginary'] == 0.0) {
			return cos($parsedComplex['real']);
		} else {
			return self::IMCONJUGATE(self::COMPLEX(cos($parsedComplex['real']) * cosh($parsedComplex['imaginary']),sin($parsedComplex['real']) * sinh($parsedComplex['imaginary']),$parsedComplex['suffix']));
		}
	}	//	function IMCOS()


	/**
	 * IMSIN
	 *
	 * Returns the sine of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMSIN(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the sine.
	 * @return	string|float
	 */
	public static function IMSIN($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if ($parsedComplex['imaginary'] == 0.0) {
			return sin($parsedComplex['real']);
		} else {
			return self::COMPLEX(sin($parsedComplex['real']) * cosh($parsedComplex['imaginary']),cos($parsedComplex['real']) * sinh($parsedComplex['imaginary']),$parsedComplex['suffix']);
		}
	}	//	function IMSIN()


	/**
	 * IMSQRT
	 *
	 * Returns the square root of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMSQRT(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the square root.
	 * @return	string
	 */
	public static function IMSQRT($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		$theta = self::IMARGUMENT($complexNumber);
		$d1 = cos($theta / 2);
		$d2 = sin($theta / 2);
		$r = sqrt(sqrt(($parsedComplex['real'] * $parsedComplex['real']) + ($parsedComplex['imaginary'] * $parsedComplex['imaginary'])));

		if ($parsedComplex['suffix'] == '') {
			return self::COMPLEX($d1 * $r,$d2 * $r);
		} else {
			return self::COMPLEX($d1 * $r,$d2 * $r,$parsedComplex['suffix']);
		}
	}	//	function IMSQRT()


	/**
	 * IMLN
	 *
	 * Returns the natural logarithm of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMLN(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the natural logarithm.
	 * @return	string
	 */
	public static function IMLN($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if (($parsedComplex['real'] == 0.0) && ($parsedComplex['imaginary'] == 0.0)) {
			return PHPExcel_Calculation_Functions::NaN();
		}

		$logR = log(sqrt(($parsedComplex['real'] * $parsedComplex['real']) + ($parsedComplex['imaginary'] * $parsedComplex['imaginary'])));
		$t = self::IMARGUMENT($complexNumber);

		if ($parsedComplex['suffix'] == '') {
			return self::COMPLEX($logR,$t);
		} else {
			return self::COMPLEX($logR,$t,$parsedComplex['suffix']);
		}
	}	//	function IMLN()


	/**
	 * IMLOG10
	 *
	 * Returns the common logarithm (base 10) of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMLOG10(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the common logarithm.
	 * @return	string
	 */
	public static function IMLOG10($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if (($parsedComplex['real'] == 0.0) && ($parsedComplex['imaginary'] == 0.0)) {
			return PHPExcel_Calculation_Functions::NaN();
		} elseif (($parsedComplex['real'] > 0.0) && ($parsedComplex['imaginary'] == 0.0)) {
			return log10($parsedComplex['real']);
		}

		return self::IMPRODUCT(log10(EULER),self::IMLN($complexNumber));
	}	//	function IMLOG10()


	/**
	 * IMLOG2
	 *
	 * Returns the base-2 logarithm of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMLOG2(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the base-2 logarithm.
	 * @return	string
	 */
	public static function IMLOG2($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if (($parsedComplex['real'] == 0.0) && ($parsedComplex['imaginary'] == 0.0)) {
			return PHPExcel_Calculation_Functions::NaN();
		} elseif (($parsedComplex['real'] > 0.0) && ($parsedComplex['imaginary'] == 0.0)) {
			return log($parsedComplex['real'],2);
		}

		return self::IMPRODUCT(log(EULER,2),self::IMLN($complexNumber));
	}	//	function IMLOG2()


	/**
	 * IMEXP
	 *
	 * Returns the exponential of a complex number in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMEXP(complexNumber)
	 *
	 * @param	string		$complexNumber	The complex number for which you want the exponential.
	 * @return	string
	 */
	public static function IMEXP($complexNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);

		$parsedComplex = self::_parseComplex($complexNumber);

		if (($parsedComplex['real'] == 0.0) && ($parsedComplex['imaginary'] == 0.0)) {
			return '1';
		}

		$e = exp($parsedComplex['real']);
		$eX = $e * cos($parsedComplex['imaginary']);
		$eY = $e * sin($parsedComplex['imaginary']);

		if ($parsedComplex['suffix'] == '') {
			return self::COMPLEX($eX,$eY);
		} else {
			return self::COMPLEX($eX,$eY,$parsedComplex['suffix']);
		}
	}	//	function IMEXP()


	/**
	 * IMPOWER
	 *
	 * Returns a complex number in x + yi or x + yj text format raised to a power.
	 *
	 * Excel Function:
	 *		IMPOWER(complexNumber,realNumber)
	 *
	 * @param	string		$complexNumber	The complex number you want to raise to a power.
	 * @param	float		$realNumber		The power to which you want to raise the complex number.
	 * @return	string
	 */
	public static function IMPOWER($complexNumber,$realNumber) {
		$complexNumber	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber);
		$realNumber		= PHPExcel_Calculation_Functions::flattenSingleValue($realNumber);

		if (!is_numeric($realNumber)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}

		$parsedComplex = self::_parseComplex($complexNumber);

		$r = sqrt(($parsedComplex['real'] * $parsedComplex['real']) + ($parsedComplex['imaginary'] * $parsedComplex['imaginary']));
		$rPower = pow($r,$realNumber);
		$theta = self::IMARGUMENT($complexNumber) * $realNumber;
		if ($theta == 0) {
			return 1;
		} elseif ($parsedComplex['imaginary'] == 0.0) {
			return self::COMPLEX($rPower * cos($theta),$rPower * sin($theta),$parsedComplex['suffix']);
		} else {
			return self::COMPLEX($rPower * cos($theta),$rPower * sin($theta),$parsedComplex['suffix']);
		}
	}	//	function IMPOWER()


	/**
	 * IMDIV
	 *
	 * Returns the quotient of two complex numbers in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMDIV(complexDividend,complexDivisor)
	 *
	 * @param	string		$complexDividend	The complex numerator or dividend.
	 * @param	string		$complexDivisor		The complex denominator or divisor.
	 * @return	string
	 */
	public static function IMDIV($complexDividend,$complexDivisor) {
		$complexDividend	= PHPExcel_Calculation_Functions::flattenSingleValue($complexDividend);
		$complexDivisor	= PHPExcel_Calculation_Functions::flattenSingleValue($complexDivisor);

		$parsedComplexDividend = self::_parseComplex($complexDividend);
		$parsedComplexDivisor = self::_parseComplex($complexDivisor);

		if (($parsedComplexDividend['suffix'] != '') && ($parsedComplexDivisor['suffix'] != '') &&
			($parsedComplexDividend['suffix'] != $parsedComplexDivisor['suffix'])) {
			return PHPExcel_Calculation_Functions::NaN();
		}
		if (($parsedComplexDividend['suffix'] != '') && ($parsedComplexDivisor['suffix'] == '')) {
			$parsedComplexDivisor['suffix'] = $parsedComplexDividend['suffix'];
		}

		$d1 = ($parsedComplexDividend['real'] * $parsedComplexDivisor['real']) + ($parsedComplexDividend['imaginary'] * $parsedComplexDivisor['imaginary']);
		$d2 = ($parsedComplexDividend['imaginary'] * $parsedComplexDivisor['real']) - ($parsedComplexDividend['real'] * $parsedComplexDivisor['imaginary']);
		$d3 = ($parsedComplexDivisor['real'] * $parsedComplexDivisor['real']) + ($parsedComplexDivisor['imaginary'] * $parsedComplexDivisor['imaginary']);

		$r = $d1/$d3;
		$i = $d2/$d3;

		if ($i > 0.0) {
			return self::_cleanComplex($r.'+'.$i.$parsedComplexDivisor['suffix']);
		} elseif ($i < 0.0) {
			return self::_cleanComplex($r.$i.$parsedComplexDivisor['suffix']);
		} else {
			return $r;
		}
	}	//	function IMDIV()


	/**
	 * IMSUB
	 *
	 * Returns the difference of two complex numbers in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMSUB(complexNumber1,complexNumber2)
	 *
	 * @param	string		$complexNumber1		The complex number from which to subtract complexNumber2.
	 * @param	string		$complexNumber2		The complex number to subtract from complexNumber1.
	 * @return	string
	 */
	public static function IMSUB($complexNumber1,$complexNumber2) {
		$complexNumber1	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber1);
		$complexNumber2	= PHPExcel_Calculation_Functions::flattenSingleValue($complexNumber2);

		$parsedComplex1 = self::_parseComplex($complexNumber1);
		$parsedComplex2 = self::_parseComplex($complexNumber2);

		if ((($parsedComplex1['suffix'] != '') && ($parsedComplex2['suffix'] != '')) &&
			($parsedComplex1['suffix'] != $parsedComplex2['suffix'])) {
			return PHPExcel_Calculation_Functions::NaN();
		} elseif (($parsedComplex1['suffix'] == '') && ($parsedComplex2['suffix'] != '')) {
			$parsedComplex1['suffix'] = $parsedComplex2['suffix'];
		}

		$d1 = $parsedComplex1['real'] - $parsedComplex2['real'];
		$d2 = $parsedComplex1['imaginary'] - $parsedComplex2['imaginary'];

		return self::COMPLEX($d1,$d2,$parsedComplex1['suffix']);
	}	//	function IMSUB()


	/**
	 * IMSUM
	 *
	 * Returns the sum of two or more complex numbers in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMSUM(complexNumber[,complexNumber[,...]])
	 *
	 * @param	string		$complexNumber,...	Series of complex numbers to add
	 * @return	string
	 */
	public static function IMSUM() {
		// Return value
		$returnValue = self::_parseComplex('0');
		$activeSuffix = '';

		// Loop through the arguments
		$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
		foreach ($aArgs as $arg) {
			$parsedComplex = self::_parseComplex($arg);

			if ($activeSuffix == '') {
				$activeSuffix = $parsedComplex['suffix'];
			} elseif (($parsedComplex['suffix'] != '') && ($activeSuffix != $parsedComplex['suffix'])) {
				return PHPExcel_Calculation_Functions::VALUE();
			}

			$returnValue['real'] += $parsedComplex['real'];
			$returnValue['imaginary'] += $parsedComplex['imaginary'];
		}

		if ($returnValue['imaginary'] == 0.0) { $activeSuffix = ''; }
		return self::COMPLEX($returnValue['real'],$returnValue['imaginary'],$activeSuffix);
	}	//	function IMSUM()


	/**
	 * IMPRODUCT
	 *
	 * Returns the product of two or more complex numbers in x + yi or x + yj text format.
	 *
	 * Excel Function:
	 *		IMPRODUCT(complexNumber[,complexNumber[,...]])
	 *
	 * @param	string		$complexNumber,...	Series of complex numbers to multiply
	 * @return	string
	 */
	public static function IMPRODUCT() {
		// Return value
		$returnValue = self::_parseComplex('1');
		$activeSuffix = '';

		// Loop through the arguments
		$aArgs = PHPExcel_Calculation_Functions::flattenArray(func_get_args());
		foreach ($aArgs as $arg) {
			$parsedComplex = self::_parseComplex($arg);

			$workValue = $returnValue;
			if (($parsedComplex['suffix'] != '') && ($activeSuffix == '')) {
				$activeSuffix = $parsedComplex['suffix'];
			} elseif (($parsedComplex['suffix'] != '') && ($activeSuffix != $parsedComplex['suffix'])) {
				return PHPExcel_Calculation_Functions::NaN();
			}
			$returnValue['real'] = ($workValue['real'] * $parsedComplex['real']) - ($workValue['imaginary'] * $parsedComplex['imaginary']);
			$returnValue['imaginary'] = ($workValue['real'] * $parsedComplex['imaginary']) + ($workValue['imaginary'] * $parsedComplex['real']);
		}

		if ($returnValue['imaginary'] == 0.0) { $activeSuffix = ''; }
		return self::COMPLEX($returnValue['real'],$returnValue['imaginary'],$activeSuffix);
	}	//	function IMPRODUCT()


	/**
	 *	DELTA
	 *
	 *	Tests whether two values are equal. Returns 1 if number1 = number2; returns 0 otherwise.
	 *	Use this function to filter a set of values. For example, by summing several DELTA
	 *	functions you calculate the count of equal pairs. This function is also known as the
	 *	Kronecker Delta function.
	 *
	 *	Excel Function:
	 *		DELTA(a[,b])
	 *
	 *	@param	float		$a	The first number.
	 *	@param	float		$b	The second number. If omitted, b is assumed to be zero.
	 *	@return	int
	 */
	public static function DELTA($a, $b=0) {
		$a	= PHPExcel_Calculation_Functions::flattenSingleValue($a);
		$b	= PHPExcel_Calculation_Functions::flattenSingleValue($b);

		return (int) ($a == $b);
	}	//	function DELTA()


	/**
	 *	GESTEP
	 *
	 *	Excel Function:
	 *		GESTEP(number[,step])
	 *
	 *	Returns 1 if number >= step; returns 0 (zero) otherwise
	 *	Use this function to filter a set of values. For example, by summing several GESTEP
	 *	functions you calculate the count of values that exceed a threshold.
	 *
	 *	@param	float		$number		The value to test against step.
	 *	@param	float		$step		The threshold value.
	 *									If you omit a value for step, GESTEP uses zero.
	 *	@return	int
	 */
	public static function GESTEP($number, $step=0) {
		$number	= PHPExcel_Calculation_Functions::flattenSingleValue($number);
		$step	= PHPExcel_Calculation_Functions::flattenSingleValue($step);

		return (int) ($number >= $step);
	}	//	function GESTEP()


	//
	//	Private method to calculate the erf value
	//
	private static $_two_sqrtpi = 1.128379167095512574;

	public static function _erfVal($x) {
		if (abs($x) > 2.2) {
			return 1 - self::_erfcVal($x);
		}
		$sum = $term = $x;
		$xsqr = ($x * $x);
		$j = 1;
		do {
			$term *= $xsqr / $j;
			$sum -= $term / (2 * $j + 1);
			++$j;
			$term *= $xsqr / $j;
			$sum += $term / (2 * $j + 1);
			++$j;
			if ($sum == 0.0) {
				break;
			}
		} while (abs($term / $sum) > PRECISION);
		return self::$_two_sqrtpi * $sum;
	}	//	function _erfVal()


	/**
	 *	ERF
	 *
	 *	Returns the error function integrated between the lower and upper bound arguments.
	 *
	 *	Note: In Excel 2007 or earlier, if you input a negative value for the upper or lower bound arguments,
	 *			the function would return a #NUM! error. However, in Excel 2010, the function algorithm was
	 *			improved, so that it can now calculate the function for both positive and negative ranges.
	 *			PHPExcel follows Excel 2010 behaviour, and accepts nagative arguments.
	 *
	 *	Excel Function:
	 *		ERF(lower[,upper])
	 *
	 *	@param	float		$lower	lower bound for integrating ERF
	 *	@param	float		$upper	upper bound for integrating ERF.
	 *								If omitted, ERF integrates between zero and lower_limit
	 *	@return	float
	 */
	public static function ERF($lower, $upper = NULL) {
		$lower	= PHPExcel_Calculation_Functions::flattenSingleValue($lower);
		$upper	= PHPExcel_Calculation_Functions::flattenSingleValue($upper);

		if (is_numeric($lower)) {
			if (is_null($upper)) {
				return self::_erfVal($lower);
			}
			if (is_numeric($upper)) {
				return self::_erfVal($upper) - self::_erfVal($lower);
			}
		}
		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function ERF()


	//
	//	Private method to calculate the erfc value
	//
	private static $_one_sqrtpi = 0.564189583547756287;

	private static function _erfcVal($x) {
		if (abs($x) < 2.2) {
			return 1 - self::_erfVal($x);
		}
		if ($x < 0) {
			return 2 - self::ERFC(-$x);
		}
		$a = $n = 1;
		$b = $c = $x;
		$d = ($x * $x) + 0.5;
		$q1 = $q2 = $b / $d;
		$t = 0;
		do {
			$t = $a * $n + $b * $x;
			$a = $b;
			$b = $t;
			$t = $c * $n + $d * $x;
			$c = $d;
			$d = $t;
			$n += 0.5;
			$q1 = $q2;
			$q2 = $b / $d;
		} while ((abs($q1 - $q2) / $q2) > PRECISION);
		return self::$_one_sqrtpi * exp(-$x * $x) * $q2;
	}	//	function _erfcVal()


	/**
	 *	ERFC
	 *
	 *	Returns the complementary ERF function integrated between x and infinity
	 *
	 *	Note: In Excel 2007 or earlier, if you input a negative value for the lower bound argument,
	 *		the function would return a #NUM! error. However, in Excel 2010, the function algorithm was
	 *		improved, so that it can now calculate the function for both positive and negative x values.
	 *			PHPExcel follows Excel 2010 behaviour, and accepts nagative arguments.
	 *
	 *	Excel Function:
	 *		ERFC(x)
	 *
	 *	@param	float	$x	The lower bound for integrating ERFC
	 *	@return	float
	 */
	public static function ERFC($x) {
		$x = PHPExcel_Calculation_Functions::flattenSingleValue($x);

		if (is_numeric($x)) {
			return self::_erfcVal($x);
		}
		return PHPExcel_Calculation_Functions::VALUE();
	}	//	function ERFC()


	/**
	 *	getConversionGroups
	 *	Returns a list of the different conversion groups for UOM conversions
	 *
	 *	@return	array
	 */
	public static function getConversionGroups() {
		$conversionGroups = array();
		foreach(self::$_conversionUnits as $conversionUnit) {
			$conversionGroups[] = $conversionUnit['Group'];
		}
		return array_merge(array_unique($conversionGroups));
	}	//	function getConversionGroups()


	/**
	 *	getConversionGroupUnits
	 *	Returns an array of units of measure, for a specified conversion group, or for all groups
	 *
	 *	@param	string	$group	The group whose units of measure you want to retrieve
	 *	@return	array
	 */
	public static function getConversionGroupUnits($group = NULL) {
		$conversionGroups = array();
		foreach(self::$_conversionUnits as $conversionUnit => $conversionGroup) {
			if ((is_null($group)) || ($conversionGroup['Group'] == $group)) {
				$conversionGroups[$conversionGroup['Group']][] = $conversionUnit;
			}
		}
		return $conversionGroups;
	}	//	function getConversionGroupUnits()


	/**
	 *	getConversionGroupUnitDetails
	 *
	 *	@param	string	$group	The group whose units of measure you want to retrieve
	 *	@return	array
	 */
	public static function getConversionGroupUnitDetails($group = NULL) {
		$conversionGroups = array();
		foreach(self::$_conversionUnits as $conversionUnit => $conversionGroup) {
			if ((is_null($group)) || ($conversionGroup['Group'] == $group)) {
				$conversionGroups[$conversionGroup['Group']][] = array(	'unit'			=> $conversionUnit,
																		'description'	=> $conversionGroup['Unit Name']
																	  );
			}
		}
		return $conversionGroups;
	}	//	function getConversionGroupUnitDetails()


	/**
	 *	getConversionMultipliers
	 *	Returns an array of the Multiplier prefixes that can be used with Units of Measure in CONVERTUOM()
	 *
	 *	@return	array of mixed
	 */
	public static function getConversionMultipliers() {
		return self::$_conversionMultipliers;
	}	//	function getConversionGroups()


	/**
	 *	CONVERTUOM
	 *
	 *	Converts a number from one measurement system to another.
	 *	For example, CONVERT can translate a table of distances in miles to a table of distances
	 *	in kilometers.
	 *
	 *	Excel Function:
	 *		CONVERT(value,fromUOM,toUOM)
	 *
	 *	@param	float		$value		The value in fromUOM to convert.
	 *	@param	string		$fromUOM	The units for value.
	 *	@param	string		$toUOM		The units for the result.
	 *
	 *	@return	float
	 */
	public static function CONVERTUOM($value, $fromUOM, $toUOM) {
		$value		= PHPExcel_Calculation_Functions::flattenSingleValue($value);
		$fromUOM	= PHPExcel_Calculation_Functions::flattenSingleValue($fromUOM);
		$toUOM		= PHPExcel_Calculation_Functions::flattenSingleValue($toUOM);

		if (!is_numeric($value)) {
			return PHPExcel_Calculation_Functions::VALUE();
		}
		$fromMultiplier = 1.0;
		if (isset(self::$_conversionUnits[$fromUOM])) {
			$unitGroup1 = self::$_conversionUnits[$fromUOM]['Group'];
		} else {
			$fromMultiplier = substr($fromUOM,0,1);
			$fromUOM = substr($fromUOM,1);
			if (isset(self::$_conversionMultipliers[$fromMultiplier])) {
				$fromMultiplier = self::$_conversionMultipliers[$fromMultiplier]['multiplier'];
			} else {
				return PHPExcel_Calculation_Functions::NA();
			}
			if ((isset(self::$_conversionUnits[$fromUOM])) && (self::$_conversionUnits[$fromUOM]['AllowPrefix'])) {
				$unitGroup1 = self::$_conversionUnits[$fromUOM]['Group'];
			} else {
				return PHPExcel_Calculation_Functions::NA();
			}
		}
		$value *= $fromMultiplier;

		$toMultiplier = 1.0;
		if (isset(self::$_conversionUnits[$toUOM])) {
			$unitGroup2 = self::$_conversionUnits[$toUOM]['Group'];
		} else {
			$toMultiplier = substr($toUOM,0,1);
			$toUOM = substr($toUOM,1);
			if (isset(self::$_conversionMultipliers[$toMultiplier])) {
				$toMultiplier = self::$_conversionMultipliers[$toMultiplier]['multiplier'];
			} else {
				return PHPExcel_Calculation_Functions::NA();
			}
			if ((isset(self::$_conversionUnits[$toUOM])) && (self::$_conversionUnits[$toUOM]['AllowPrefix'])) {
				$unitGroup2 = self::$_conversionUnits[$toUOM]['Group'];
			} else {
				return PHPExcel_Calculation_Functions::NA();
			}
		}
		if ($unitGroup1 != $unitGroup2) {
			return PHPExcel_Calculation_Functions::NA();
		}

		if (($fromUOM == $toUOM) && ($fromMultiplier == $toMultiplier)) {
			//	We've already factored $fromMultiplier into the value, so we need
			//		to reverse it again
			return $value / $fromMultiplier;
		} elseif ($unitGroup1 == 'Temperature') {
			if (($fromUOM == 'F') || ($fromUOM == 'fah')) {
				if (($toUOM == 'F') || ($toUOM == 'fah')) {
					return $value;
				} else {
					$value = (($value - 32) / 1.8);
					if (($toUOM == 'K') || ($toUOM == 'kel')) {
						$value += 273.15;
					}
					return $value;
				}
			} elseif ((($fromUOM == 'K') || ($fromUOM == 'kel')) &&
					  (($toUOM == 'K') || ($toUOM == 'kel'))) {
						return $value;
			} elseif ((($fromUOM == 'C') || ($fromUOM == 'cel')) &&
					  (($toUOM == 'C') || ($toUOM == 'cel'))) {
					return $value;
			}
			if (($toUOM == 'F') || ($toUOM == 'fah')) {
				if (($fromUOM == 'K') || ($fromUOM == 'kel')) {
					$value -= 273.15;
				}
				return ($value * 1.8) + 32;
			}
			if (($toUOM == 'C') || ($toUOM == 'cel')) {
				return $value - 273.15;
			}
			return $value + 273.15;
		}
		return ($value * self::$_unitConversions[$unitGroup1][$fromUOM][$toUOM]) / $toMultiplier;
	}	//	function CONVERTUOM()

}	//	class PHPExcel_Calculation_Engineering

Youez - 2016 - github.com/yon3zu
LinuXploit