.\" @(#)sinh.3m 6.1 (Berkeley) 5/15/85 .\" .TH SINH 3M "May 15, 1985" .AT 3 .SH NAME sinh, cosh, tanh \- hyperbolic functions .SH SYNOPSIS .nf .B #include .PP .B double sinh(x) .PP .B double cosh(x) .B double x; .PP .B double tanh(x) .B double x; .fi .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.