pow

(PHP 3, PHP 4 >= 4.0.0)

pow -- Exponential expression

Description

number pow ( number base, number exp)

Returns base raised to the power of exp. If possible, this function will return an integer.

If the power cannot be computed, a warning will be issued, and pow() will return FALSE.

Warning

In PHP 4.0.6 and earlier pow() always returned a float, and did not issue warnings.

See also exp() and sqrt().