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.
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].
casin(z) = -i clog(iz + csqrt(1 - z * z))
These functions first appeared in glibc in version 2.1.
For an explanation of the terms used in this section, see attributes(7).
C99, POSIX.1-2001, POSIX.1-2008.
This page is part of release 5.04 of the Linux man-pages project. A
description of the project, information about reporting bugs, and the latest
version of this page, can be found at https://www.kernel.org/doc/man-pages/.
|casin (), casinf (), casinl ()