man3/ccosh.3

   1 .\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
   2 .\"
   3 .\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
   4 .\" Distributed under GPL
   5 .\" %%%LICENSE_END
   6 .\"
   7 .TH CCOSH 3 2017-09-15 "" "Linux Programmer's Manual"
   8 .SH NAME
   9 ccosh, ccoshf, ccoshl \- complex hyperbolic cosine
  10 .SH SYNOPSIS
  11 .B #include <complex.h>
  12 .PP
  13 .BI "double complex ccosh(double complex " z ");"
  14 .br
  15 .BI "float complex ccoshf(float complex " z ");"
  16 .br
  17 .BI "long double complex ccoshl(long double complex " z ");"
  18 .PP
  19 Link with \fI\-lm\fP.
  20 .SH DESCRIPTION
  21 These functions calculate the complex hyperbolic cosine of
  22 .IR z .
  23 .PP
  24 The complex hyperbolic cosine function is defined as:
  25 .PP
  26 .nf
  27     ccosh(z) = (exp(z)+exp(\-z))/2
  28 .fi
  29 .SH VERSIONS
  30 These functions first appeared in glibc in version 2.1.
  31 .SH CONFORMING TO
  32 C99, POSIX.1-2001, POSIX.1-2008.
  33 .SH SEE ALSO
  34 .BR cabs (3),
  35 .BR cacosh (3),
  36 .BR csinh (3),
  37 .BR ctanh (3),
  38 .BR complex (7)