Man page - casinf(3)

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Manual

casin

NAME
LIBRARY
SYNOPSIS
DESCRIPTION
ATTRIBUTES
STANDARDS
HISTORY
SEE ALSO

NAME

casin, casinf, casinl - complex arc sine

LIBRARY

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 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))

ATTRIBUTES

For an explanation of the terms used in this section, see attributes (7).

Image grohtml-346996-1.png

STANDARDS

C11, POSIX.1-2008.

HISTORY

glibc 2.1. C99, POSIX.1-2001.

SEE ALSO

clog (3), csin (3), complex (7)