ctanh (3)

Leading comments

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

%%%LICENSE_START(GPL_NOVERSION_ONELINE)
Distributed under GPL
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(The comments found at the beginning of the groff file "man3/ctanh.3".)

NAME

ctanh, ctanhf, ctanhl - complex hyperbolic tangent

SYNOPSIS

#include <complex.h>

double complex ctanh(double complex z);
float complex ctanhf(float complex z);
long double complex ctanhl(long double complex z);

Link with -lm.

DESCRIPTION

These functions calculate the complex hyperbolic tangent of z.
The complex hyperbolic tangent function is defined mathematically as:

    ctanh(z) = csinh(z) / ccosh(z)

VERSIONS

These functions first appeared in glibc in version 2.1.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

Interface	Attribute	Value
ctanh(), ctanhf(), ctanhl()	Thread safety	MT-Safe

CONFORMING TO

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

SEE ALSO

cabs(3), catanh(3), ccosh(3), csinh(3), complex(7)

COLOPHON

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