CSQRT(3) manual page
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csqrt, csqrtf, csqrtl - complex square root
#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.
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.
C99.
cabs(3)
, cexp(3)
, complex(7)
This
page is part of release 3.78 of the Linux man-pages project. A description
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