Name
casinh, casinhf, casinhl - complex arc sine hyperbolicLibrary
Math library ( libm ", " -lm )Synopsis
#include <complex.h> double complex casinh(double complex z );
float complex casinhf(float complex z );
long double complex casinhl(long double complex z );
Description
These functions calculate the complex arc hyperbolic sine ofz
. 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))
Attributes
For an explanation of the terms used in this section, see attributes(7).Interface | Attribute | Value |
T} | Thread safety | MT-Safe |