SQRT(3)

NAME
sqrt - square root function

SYNOPSIS
#include <math.h>
double
sqrt(double x);
long double
sqrtl(long double x);
float
sqrtf(float x);

DESCRIPTION
The sqrt() function compute the non-negative square root of x.

SPECIAL VALUES
sqrt(-0) returns -0.

sqrt(x) returns a NaN and generates a domain error for x < 0.

SEE ALSO
math(3)

STANDARDS
The sqrt() function conforms to ISO/IEC 9899:1999(E).