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PhpDig is a PHP MySQL based
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pow — Raises the first argument to the power of the second argument.


float pow(number, power);
float number: Number to be raised
float power: Power to which to raise the number


Result of raising one number to the power of another


This function raises number to the power of power . For example, to raise 3 to the power of 2, the notation is pow(3, 2)() . See the example for pi() to see how this function applies when calculating the area of a circle.


PHP 3, PHP 4

See also

See also sqrt()


Example 687. Use pow() to calculate a hypotenuse

$hyp = 5;
$adj = 4;
$opp = 3;
$hyp_calc = pow($opp, 2) + pow($adj, 2);
$hyp_true = pow($hyp, 2);
echo "a squared + b squared = $hyp_calc<BR />\n";
echo "c squared = $hyp_true\n";

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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