double complex csqrt(double complex z);
float complex csqrtf(float complex z);
long double complex csqrtl(long double complex z);
Link with -lm.
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.)
These functions first appeared in glibc in version 2.1.
cabs(3), cexp(3), complex(7)
This page is part of release 3.54 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/.
Man Pages Copyright Respective Owners. Site Copyright (C) 1994 - 2018
All Rights Reserved.