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

Description

float fpow(float $num, float $exponent)

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

Example #1 fpow example

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

The above example will output:

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

fpow

Description

Parameters

Return Values

Examples

See Also