man3/ctanh.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 CTANH 3 2008-08-11 "" "Linux Programmer's Manual"
   8 .SH NAME
   9 ctanh, ctanhf, ctanhl \- complex hyperbolic tangent
  10 .SH SYNOPSIS
  11 .B #include <complex.h>
  12 .sp
  13 .BI "double complex ctanh(double complex " z ");"
  14 .br
  15 .BI "float complex ctanhf(float complex " z );
  16 .br
  17 .BI "long double complex ctanhl(long double complex " z ");"
  18 .sp
  19 Link with \fI\-lm\fP.
  20 .SH DESCRIPTION
  21 The complex hyperbolic tangent function is defined
  22 mathematically as:
  23 .nf
  24
  25     ctanh(z) = csinh(z) / ccosh(z)
  26 .fi
  27 .SH VERSIONS
  28 These functions first appeared in glibc in version 2.1.
  29 .SH ATTRIBUTES
  30 For an explanation of the terms used in this section, see
  31 .BR attributes (7).
  32 .TS
  33 allbox;
  34 lbw27 lb lb
  35 l l l.
  36 Interface       Attribute       Value
  37 T{
  38 .BR ctanh (),
  39 .BR ctanhf (),
  40 .BR ctanhl ()
  41 T}      Thread safety   MT-Safe
  42 .TE
  43
  44 .SH CONFORMING TO
  45 C99, POSIX.1-2001, POSIX.1-2008.
  46 .SH SEE ALSO
  47 .BR cabs (3),
  48 .BR catanh (3),
  49 .BR ccosh (3),
  50 .BR csinh (3),
  51 .BR complex (7)