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bcsub> <bcscale
Last updated: Fri, 20 Nov 2009

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bcsqrt

(PHP 4, PHP 5)

bcsqrtGet the square root of an arbitrary precision number

Descrierea

string bcsqrt ( string $operand [, int $scale ] )

Return the square root of the operand .

Parametri

operand

The operand, as a string.

scale

Acest parametru opţional este utilizat pentru a stabili numărul cifrelor după virgulă din rezultat. De asemenea puteţi să stabiliţi parametrul global scale pentru toate funcţiile utilizând bcscale().

Valorile întroarse

Returns the square root as a string, or NULL if operand is negative.

Exemple

Example #1 bcsqrt() example

<?php

echo bcsqrt('2'3); // 1.414

?>

Vedeţi de asemenea

  • bcpow() - Raise an arbitrary precision number to another



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bcsub> <bcscale
Last updated: Fri, 20 Nov 2009
 
 
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