CASINH

Section: Linux Programmer's Manual (3)
Updated: 2015-04-19
Page Index
 

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).
InterfaceAttributeValue
casinh(), casinhf(), casinhl() Thread safetyMT-Safe
 

CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.  

SEE ALSO

asinh(3), cabs(3), cimag(3), csinh(3), complex(7)  

COLOPHON

This page is part of release 5.10 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
VERSIONS
ATTRIBUTES
CONFORMING TO
SEE ALSO
COLOPHON