CASIN, CASINF, CASINL - reference manual online

Complex arc sine.

CASIN(3)                            Linux Programmer's Manual                            CASIN(3)

NAME casin, casinf, casinl - complex arc sine
SYNOPSIS #include <complex.h> double complex casin(double complex z); float complex casinf(float complex z); long double complex casinl(long double complex z); Link with -lm.
DESCRIPTION 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))
VERSIONS These functions first appeared in glibc in version 2.1.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├─────────────────────────────┼───────────────┼─────────┤ │casin(), casinf(), casinl() │ Thread safety │ MT-Safe │ └─────────────────────────────┴───────────────┴─────────┘
CONFORMING TO C99, POSIX.1-2001, POSIX.1-2008.
SEE ALSO clog(3), csin(3), complex(7)
COLOPHON This page is part of release 4.04 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
2015-04-19 CASIN(3)
This manual Reference Other manuals
casin(3) referred by asin(3) | complex(7) | csin(3)
refer to attributes(7) | clog(3) | complex(7) | csin(3)