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fpow

(PHP 8 >= 8.4.0)

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

Beschreibung

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.

Parameter-Liste

num
The base to use.
exponent
The exponent.

Rückgabewerte

Returns a float corresponding to $num$exponent.

Beispiele

Beispiel #1 fpow() example

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

Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

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

Siehe auch