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PHP | hypot() function
  • Last Updated : 04 Jul, 2020


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 :

h = \sqrt{x^2+y^2}

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

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

Related Article: hypot() in C++

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