bcpow
(PHP 3, PHP 4, PHP 5)
bcpow --
Raise an arbitrary precision number to another
Description
string
bcpow
( string x, string y [, int scale] )
Raise
x
to the power
y
. The optional
scale
can be used to set the number of
digits after the decimal place in the result.
范例
例子 1.
bcpow()
example
<?php
echo
bcpow
(
'4.2'
,
'3'
,
2
);
// 74.08
?>
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