.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.