.TH SINH 3M .SH NAME sinh, cosh, tanh \- hyperbolic functions .SH SYNOPSIS .B #include <math.h> .PP .B double sinh (x) .br .B double x; .PP .B double cosh (x) .br .B double x; .PP .B double tanh (x) .br .B double x; .SH DESCRIPTION These functions compute the designated hyperbolic functions for real arguments. .SH DIAGNOSTICS .I Sinh\^ and .I cosh\^ return a huge value of appropriate sign when the correct value would overflow.