How to use php pow function

php The pow function is used to return the yth power of x. Its syntax is pow(x,y). The parameter x is required and refers to a number; y is required and refers to a number. This function returns an integer if possible. If the exponentiation cannot be calculated, a warning will be issued and pow() will return false.

#How to use php pow function?

Definition and usage

pow() function returns x raised to the yth power.

Syntax

pow(x,y)

Parameters

x Required. A number.

y Required. A number.

Description

Returns the power of x raised to the power of y. This function returns an integer if possible.

If the power cannot be calculated, a warning will be issued and pow() will return false. Starting with PHP version 4.2.0, pow() does not generate any warnings.

Example

<?php
echo pow(4,2);
echo pow(6,2);
echo pow(-6,2);
echo pow(-6,-2);
echo pow(-6,5.5);
?>

Output similar to:

16
36
36
0.0277777777778
-1.#IND

The above is the detailed content of How to use php pow function. For more information, please follow other related articles on the PHP Chinese website!