casinh, casinfh, or casinlh Subroutine

Purpose

Computes the complex arc hyperbolic sine.

Syntax

#include <complex.h>

double complex casinh (z)
double complex z;

float complex casinhf (z)
float complex z;

long double complex casinhl (z)
long double complex z;

Description

The casinh, casinfh, and casinlh subroutines compute the complex arc hyperbolic sine of the z parameter, with branch cuts outside the interval [-i, +i] along the imaginary axis.

Parameters

Return Values

The casinh, casinfh, and casinlh subroutines return the complex arc hyperbolic sine value, in the range of a strip mathematically unbounded along the real axis and in the interval [-i pi/2, +i pi/2] along the imaginary axis.