csqrt3
Complex square root
Usage
#include <complex.h>
double complex csqrt(double complex z); float complex csqrtf(float complex z); long double complex csqrtl(long double complex z);
Library
Math library (libm, -lm)
Overview
These functions calculate the complex square root of z, 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.)
Attributes
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| csqrt(), csqrtf(), csqrtl() | Thread safety | MT-Safe |
Releases
12 releases since Debian 3.1 (Sarge); the text changed 11 times.