bcpow

Raise an arbitrary precision number to another (PHP 4, PHP 5)
string bcpow ( string left_operand, string right_operand [, int scale] )

Example 341. bcpow() example

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<?php

echo bcpow('4.2', '3', 2); // 74.08

?>

Related Examples ( Source code ) » bcpow

Examples ( Source code ) » Using the arbitrary-precision functions for exact integer arithmetic

Code Examples / Notes » bcpow

11-feb-2005 09:58

Well, if bcpow has limits, then this should work: <?php function bcpow_($num, $power) { $awnser = "1"; while ($power) { $awnser = bcmul($awnser, $num, 100); $power = bcsub($power, "1"); } return rtrim($awnser, '0.'); } ?> Just that $power cannot have decimal digits in it.

michael bailey jinxidoru

bcpow() only supports exponents less than or equal to 2^31-1. Also, bcpow() does not support decimal numbers. If you have scale set to 0, then the exponent is converted to an interger; otherwise an error is generated. -- Michael Bailey http://www.jinxidoru.com

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bcadd
bccomp
bcdiv
bcmod
bcmul
bcpow
bcpowmod
bcscale
bcsqrt
bcsub