NAME
sqrt, sqrtf, sqrtl - square root function
SYNOPSIS
#include <math.h>
I double sqrt(double x );
I float sqrtf(float x );
I long double sqrtl(long double x );
Link with
-lm.
DESCRIPTION
The
R sqrt ()
function returns the non-negative square root of x.
It fails and sets errno to EDOM, if x is negative.
ERRORS
CONFORMING TO
SVr4, 4.3BSD, C89.
The
float
and
long double
variants are C99 requirements.
SEE ALSO
