Manpage of CASIN

CASIN

Section: Linux Programmer's Manual (3)
Updated: 2015-04-19
Index
 

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 yis 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).
InterfaceAttributeValue
casin(), casinf(), casinl() Thread safetyMT-Safe
 

CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.  

SEE ALSO

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
VERSIONS
ATTRIBUTES
CONFORMING TO
SEE ALSO

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Time: 22:27:55 GMT, June 20, 2016