gmp_sqrt

Description

resource gmp_sqrt ( resource a )

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

例子 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