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.
C99.
SEE ALSO¶
cabs(3),
cexp(3),
complex(7)
COLOPHON¶
This page is part of release 3.74 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/.
