# GAMS Support Wiki

### Site Tools

gams:missing_trig_functions_arccos_arcsin_tan

# Differences

This shows you the differences between two versions of the page.

 gams:missing_trig_functions_arccos_arcsin_tan [2015/09/18 14:28]Jarungjit Parnjai gams:missing_trig_functions_arccos_arcsin_tan [2017/09/02 19:21]support Both sides previous revision Previous revision 2017/09/02 19:21 support 2015/09/18 14:28 Jarungjit Parnjai 2007/05/25 13:43 external edit 2017/09/02 19:21 support 2015/09/18 14:28 Jarungjit Parnjai 2007/05/25 13:43 external edit Line 4: Line 4: **Note:​** ​ **Note:​** ​ - * [[http://​www.gams.com/​help/topic/gams.doc/​releasenotes/​21.5.html|Distribution 21.5]] introduced the functions: sinh, cosh, tanh + * [[https://​www.gams.com/​latest/docs/RN_215.html|Distribution 21.5]] introduced the functions: sinh, cosh, tanh - * [[http://​www.gams.com/​help/topic/gams.doc/​releasenotes/​22.3.html|Distribution 22.3]] introduced the functions: arccos, arcsin, tan and arctan2 + * [[https://​www.gams.com/​latest/docs/RN_223.html|Distribution 22.3]] introduced the functions: arccos, arcsin, tan and arctan2 - See [[http://​www.gams.com/​help/​topic/​gams.doc/​releasenotes/​index.html|release notes]] for details. + Older distributions:​ All these functions can be constructed from the GAMS built-in functions. For example, the definition of tan(x) is sin(x)/​cos(x). While computing arcsin and arccos from the GAMS built-in function arctan is less trivial, the formulas, derivations,​ and some examples are given in the model below. Older distributions:​ All these functions can be constructed from the GAMS built-in functions. For example, the definition of tan(x) is sin(x)/​cos(x). While computing arcsin and arccos from the GAMS built-in function arctan is less trivial, the formulas, derivations,​ and some examples are given in the model below.