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 (date) "Linux man-pages (unreleased)"
   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 .in +4n
  26 .EX
  27 ccosh(z) = (exp(z)+exp(\-z))/2
  28 .EE
  29 .in
  30 .SH VERSIONS
  31 These functions first appeared in glibc in version 2.1.
  32 .SH STANDARDS
  33 C99, POSIX.1-2001, POSIX.1-2008.
  34 .SH SEE ALSO
  35 .BR cabs (3),
  36 .BR cacosh (3),
  37 .BR csinh (3),
  38 .BR ctanh (3),
  39 .BR complex (7)