CSQRT

Section: complex math routines (3)
Updated: 2002-07-28
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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);

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.)  

CONFORMING TO

C99  

SEE ALSO

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO
SEE ALSO

linux.jgfs.net manual pages