hypot

(PHP 4 >= 4.1.0, PHP 5)

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

설명

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).

인수

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

반환값

Calculated length of the hypotenuse