redhat man page for hypot

HYPOT(3)						     Linux Programmer's Manual							  HYPOT(3)

NAME
       hypot - Euclidean distance function

SYNOPSIS
       #include <math.h>

       double hypot(double x, double y);

DESCRIPTION
       The  hypot()  function  returns the sqrt(x*x + y*y).  This is the length of the hypotenuse of a right-angle triangle with sides of length x
       and y, or the distance of the point (x, y) from the origin.

CONFORMING TO
       SVID 3, BSD 4.3

SEE ALSO
       sqrt(3)

								    1993-06-25								  HYPOT(3)