csqrt
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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);
[Note] Note

Link with −lm.

DESCRIPTION

Calculate the square root of a given complex number, with non-negative 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.)

CONFORMING TO

C99

SEE ALSO

cabs(3), cexp(3), complex(7)

COLOPHON

This page is part of release 2.79 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


  Copyright 2002 Walter Harms (walter.harmsinformatik.uni-oldenburg.de)
Distributed under GPL
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