PHP hypot() function

The hypot() function is a built-in mathematical function in PHP and returns the square root of sum of square of arguments passed. It finds the hypotenuse, hypotenuse is the longest side of a right angled triangle. It is calculated by the formula :

where x and y are the other two sides of the triangle. Syntax:

hypot(x,y);

Parameters used:

• x : the length of first side.
• y: the length of the second side.

Return Type: The return type of hypot(x,y) is Float and it returns the square root of squares of values passed to it as parameters. Examples:

Input : x=3, y=4
Output :5

Input :x=9, y=10
Output : 13.453624047074

Below program illustrates the working of hypot() function in PHP:

<?php
    // PHP code

    // Calculating the value of hypotenuse
    // With sides = 3,4
    $hypotenuse  = hypot(3,4);
    print_r($hypotenuse);

    // New Line
    print_r("\n");

    // Calculating the value of hypotenuse
    // With sides = 4,6
    $hypotenuse = hypot(4,6);
    print_r($hypotenuse);
?>

Output:

5
7.211102550928