Name
casin, casinf, casinl - complex arc sineLibrary
Math library ( libm ", " -lm )Synopsis
#include <complex.h> double complex casin(double complex z );
float complex casinf(float complex z );
long double complex casinl(long double complex z );
Description
These functions calculate the complex arc sine ofz
. 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 |
T} | Thread safety | MT-Safe |