man3/ccosh.3

   1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
   2 .\"
   3 .\" SPDX-License-Identifier: GPL-1.0-or-later
   4 .\"
   5 .TH CCOSH 3 2021-03-22 "" "Linux Programmer's Manual"
   6 .SH NAME
   7 ccosh, ccoshf, ccoshl \- complex hyperbolic cosine
   8 .SH LIBRARY
   9 Math library
  10 .RI ( libm ", " \-lm )
  11 .SH SYNOPSIS
  12 .nf
  13 .B #include <complex.h>
  14 .PP
  15 .BI "double complex ccosh(double complex " z ");"
  16 .BI "float complex ccoshf(float complex " z ");"
  17 .BI "long double complex ccoshl(long double complex " z ");"
  18 .fi
  19 .SH DESCRIPTION
  20 These functions calculate the complex hyperbolic cosine of
  21 .IR z .
  22 .PP
  23 The complex hyperbolic cosine function is defined as:
  24 .PP
  25 .nf
  26     ccosh(z) = (exp(z)+exp(\-z))/2
  27 .fi
  28 .SH VERSIONS
  29 These functions first appeared in glibc in version 2.1.
  30 .SH CONFORMING TO
  31 C99, POSIX.1-2001, POSIX.1-2008.
  32 .SH SEE ALSO
  33 .BR cabs (3),
  34 .BR cacosh (3),
  35 .BR csinh (3),
  36 .BR ctanh (3),
  37 .BR complex (7)