Руководство по PHP
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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.

Пример 1. bcsqrt() example


<?php

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

?>

Пред.	Начало	След.
bcscale	Уровень выше	bcsub