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bcpow
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bcpow

Name

bcpow — Calculates the exponent of a number.

Synopsis

string bcpow(left_operand, right_operand[, scale]); string left_operand: Number to be raised string right_operand: Number to raise by int scale (optional): Number of decimal places to return

Returns

Value of exponent

Description

Raises the left operand to the power of the right operand. Either number can be an integer or floating-point value. Returns the result with a specified number of decimal places (optional).

Version

Existing since version 3.0

Example

Example 12. Raise to the power of a large number

$num1 = "9912343.21";
$num2 = "2.35";
echo bcpow($num1,$num2);

Output:
98254543749649

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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 http://www.opencontent.org/openpub/). The authors of this book have elected not to choose any options under the OPL. This online book was obtained from http://www.fooassociates.com/phpfer/ 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.