casin3
Complex arc sine
Usage
#include <complex.h>
double complex casin(double complex z); float complex casinf(float complex z); long double complex casinl(long double complex z);
Library
Math library (libm, -lm)
Overview
These functions calculate the complex arc sine of z. If y = casin(z), then z = csin(y). The real part of y is chosen in the interval [-pi/2,pi/2].
One has:
casin(z) = -i clog(iz + csqrt(1 - z * z))
Attributes
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| casin(), casinf(), casinl() | Thread safety | MT-Safe |
Releases
12 releases since Debian 3.1 (Sarge); the text changed 11 times.