bcsqrt

(PHP 3, PHP 4, PHP 5)

bcsqrt -- Get the square root of an arbitrary precision number

Description

string bcsqrt ( string operand [, int scale] )

Return the square root of the operand. The optional scale parameter sets the number of digits after the decimal place in the result.

Example 1. bcsqrt() example

<?php

echo bcsqrt('2', 3); // 1.414

?>