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Linux and UNIX Man Pages

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Linux 2.6 - man page for casinhf (linux section 3)

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

NAME
casinh, casinhf, casinhl - complex arc sine hyperbolic
SYNOPSIS
#include <complex.h> double complex casinh(double complex z); float complex casinhf(float complex z); long double complex casinhl(long double complex z); Link with -lm.
DESCRIPTION
These functions calculate the complex arc hyperbolic sine of z. If y = casinh(z), then z = csinh(y). The imaginary part of y is chosen in the interval [-pi/2,pi/2]. One has: casinh(z) = clog(z + csqrt(z * z + 1))
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 | +-------------------------------+---------------+---------+ |casinh(), casinhf(), casinhl() | Thread safety | MT-Safe | +-------------------------------+---------------+---------+
CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO
asinh(3), cabs(3), cimag(3), csinh(3), complex(7) 2015-04-19 CASINH(3)

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