casin
, casinf
—complex arc sine#include <complex.h> double complex casin(double complex z); float complex casinf(float complex z);
Description
These functions compute the complex arc sine of z,
with branch cuts outside the interval [-1, +1] along the real axis.
casinf
is identical to casin
, except that it performs
its calculations on floats complex
.
Returns
These functions return the complex arc sine value, in the range
of a strip mathematically unbounded along the imaginary axis
and in the interval [-pi/2, +pi/2] along the real axis.
Portability
casin
and casinf
are ISO C99