sqrt

sqrt

(PHP 3, PHP 4, PHP 5)

sqrt -- Square root

Description

float sqrt ( float arg )

Returns the square root of arg.

Example 1. sqrt() example

<?php
// Precision depends on your precision directive
echo sqrt(9); // 3
echo sqrt(10); // 3.16227766 ...
?>

See also pow().

© Copyright 2003-2014 www.php-editors.com. The ultimate PHP Editor and PHP IDE site.