.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)

.\"

.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)

.\" Distributed under GPL

.\" %%%LICENSE_END

.\"

.TH CCOSH 3 2017-09-15 "" "Linux Programmer's Manual"

.SH NAME

ccosh, ccoshf, ccoshl \- complex hyperbolic cosine

.SH SYNOPSIS

.B #include <complex.h>

.PP

.BI "double complex ccosh(double complex " z ");"

.br

.BI "float complex ccoshf(float complex " z ");"

.br

.BI "long double complex ccoshl(long double complex " z ");"

.PP

Link with \fI\-lm\fP.

.SH DESCRIPTION

These functions calculate the complex hyperbolic cosine of

.IR z .

.PP

The complex hyperbolic cosine function is defined as:

.PP

.nf

    ccosh(z) = (exp(z)+exp(\-z))/2

.fi

.SH VERSIONS

These functions first appeared in glibc in version 2.1.

.SH CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.

.SH SEE ALSO

.BR cabs (3),

.BR cacosh (3),

.BR csinh (3),

.BR ctanh (3),

.BR complex (7)

.SH COLOPHON

This page is part of release 4.15 of the Linux

.I man-pages

project.

A description of the project,

information about reporting bugs,

and the latest version of this page,

can be found at

\%https://www.kernel.org/doc/man\-pages/.