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<gmp_signgmp_sqrtrem>
Last updated: Tue, 19 Sep 2006

gmp_sqrt

(PHP 4 >= 4.0.4, PHP 5)

gmp_sqrt -- Calculate square root

Description

resource gmp_sqrt ( resource a )

Calculates square root of a and returns the integer portion of the result.

Example 1. gmp_sqrt() example

<?php
$sqrt1 = gmp_sqrt("9");
$sqrt2 = gmp_sqrt("7");
$sqrt3 = gmp_sqrt("1524157875019052100");

echo gmp_strval($sqrt1) . "\n";
echo gmp_strval($sqrt2) . "\n";
echo gmp_strval($sqrt3) . "\n";
?>

The printout of the above program will be: 

3
2
1234567890



<gmp_signgmp_sqrtrem>
Last updated: Tue, 19 Sep 2006