.\" Copyright (c) 1985 Regents of the University of California.
.\" All rights reserved.  The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\"	@(#)sinh.3m	6.5 (Berkeley) 5/12/86
.\"
.TH SINH 3M  "May 12, 1986"
.UC 4
.SH NAME
sinh, cosh, tanh \- hyperbolic functions
.SH SYNOPSIS
.nf
.B #include <math.h>
.PP
.B double sinh(x)
.B double 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 ERROR (due to Roundoff etc.)
Below 2.4 \fIulp\fRs; an \fIulp\fR is one \fIU\fRnit in the \fIL\fRast
\fIP\fRlace.
.SH DIAGNOSTICS
Sinh and cosh return the reserved operand on a VAX if
the correct value would overflow.
.SH SEE ALSO
math(3M), infnan(3M)
.SH AUTHOR
W. Kahan, Kwok\-Choi Ng