hypot

(PHP 4 >= 4.1.0, PHP 5)

hypot --  Calculate the length of the hypotenuse of a right-angle triangle

Description

float hypot ( float x, float y )

hypot() returns 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. This is equivalent to sqrt(x*x + y*y).