PHP hypot() Function

Calculate the hypotenuse of different right-angle triangles:

<?php
echo hypot(3,4) . "<br>";
echo hypot(4,6) . "<br>";
echo hypot(1,3) . "<br>";
echo sqrt(3*3+4*4);
?>

Definition and Usage

The hypot() function calculates the hypotenuse of a right-angle triangle.

Tip: This function is equivalent to sqrt(x*x + y*y).

hypot( x,y);

Parameter	Description
x	Required. Specifies the length of first side
y	Required. Specifies the length of second side