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fpow

PHP function Edit on GitHub ✎

(PHP 8 >= 8.4.0)

Raise one number to the power of another, according to IEEE 754

Description

fpow(float $num, float $exponent): float

Returns the floating point result of raising num to the power of exponent. If num is zero and exponent is less than zero, then INF is returned.

Parameters

num

The base to use.

exponent

The exponent.

Return Values

Returns a float corresponding to $num$exponent.

Examples

fpow() example

php
<?php
var_dump(fpow(10, 2));
var_dump(fpow(0, -3));
var_dump(fpow(-1, 5.5));
?>

The above example will output:

output
float(100)
float(INF)
float(NAN)

See Also

Source: reference/math/functions/fpow.xml · from the official PHP manual (php/doc-en)