casin, casinf, casinl - complex arc sine
double complex casin(double complex z);
float complex casinf(float complex z);
long double complex casinl(long double complex z);
Link with -lm.
The casin() function calculates the complex arc sine of z. If
y = casin(z), then z = csin(y). The real part of y is chosen in the
casin(z) = -i clog(iz + csqrt(1 - z * z))
These functions first appeared in glibc in version 2.1.
ccos(3), clog(3), complex(7)
This page is part of release 3.24 of the Linux man-pages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.