suse man page for catanh

Query: catanh

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Section: 3

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CATANH(3)						     Linux Programmer's Manual							 CATANH(3)

NAME
catanh, catanhf, catanhl - complex arc tangents hyperbolic
SYNOPSIS
#include <complex.h> double complex catanh(double complex z); float complex catanhf(float complex z); long double complex catanhl(long double complex z); Link with -lm.
DESCRIPTION
The catanh() function calculates the complex arc hyperbolic tangent of z. If y = catanh(z), then z = ctanh(y). The imaginary part of y is chosen in the interval [-pi/2,pi/2]. One has: catanh(z) = 0.5 * clog((1 + z) / (1 - z))
VERSIONS
These functions first appeared in glibc in version 2.1.
CONFORMING TO
C99.
SEE ALSO
atanh(3), cabs(3), cimag(3), complex(7)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/. 2008-08-11 CATANH(3)
Related Man Pages
catanh(3) - debian
catanhf(3) - debian
catanhf(3m) - sunos
catanh(3) - php
catanh(3) - v7
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