PHP Manual: 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).

Parameters

x: Length of first side
y: Length of second side

Return Values

Calculated length of the hypotenuse