hypot, hypotf, hypotl - Euclidean distance function

Syntax	#include <math.h> double hypot(double x, double y); C11 float hypotf(float x, float y); long double hypotl(long double x, long double y); (End)
Description	These functions compute the Euclidean distance. x and y are the coordinates of the point for which the Euclidean distance is to be computed.
Return val.	sqrt(x *x + y *y) if successful.
	HUGE_VAL HUGE_VALF HUGE_VALL	depending on the function type, if an overflow occurs. errno is set to indicate the error.
Errors	hypot() will fail if: ERANGE      Overflow; the result is too large.
See also	cabs(), sqrt(), math.h.