GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 7.3.0(Wheezy) |
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csqrtf(3) |
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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 3.44 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/.
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csqrtf(3) | |