x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
CSQRT(3) Linux Programmer's Manual CSQRT(3)
NAME
csqrt, csqrtf, csqrtl - complex square root
SYNOPSIS
#include <complex.h>
double complex csqrt(double complex z);
float complex csqrtf(float complex z);
long double complex csqrtl(long double complex z);
Link with -lm.
DESCRIPTION
Calculate the square root of a given complex number, with nonnegative
real part, and with a branch cut along the negative real axis. (That
means that csqrt(-1+eps*I) will be close to I while csqrt(-1-eps*I)
will be close to -I, if eps is a small positive real number.)
VERSIONS
These functions first appeared in glibc in version 2.1.
CONFORMING TO
C99.
SEE ALSO
cabs(3), cexp(3), complex(7)
COLOPHON
This page is part of release 3.69 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
http://www.kernel.org/doc/man-pages/.
2008-08-11 CSQRT(3)
Want to link to this manual page? Use this URL:
<http://star2.abcm.com/cgi-bin/bsdi-man?query=csqrt&sektion=3&manpath=>