NAME

hypot — euclidean distance function

SYNOPSIS

#include <math.h>

double
hypot(double x, double y);

long double
hypotl(long double x, long double y);

float
hypotf(float x, float y);

DESCRIPTION

The hypot() function computes the sqrt(x*x+y*y) without undue overflow or underflow.

SPECIAL VALUES

hypot(x, y) , hypot(y, x) , and hypot(x, -y) are equivalent.

hypot(x, +-0) is equivalent to fabs(x).

hypot(+-infinity, y) returns +infinity even if y is a NaN.

SEE ALSO

cabs(3), math(3), sqrt(3)

STANDARDS

The hypot() function conforms to ISO/IEC 9899:2011.