Description:
------------
The calculation of this simple piece goes wrong:
3 * 1.35 - 4.05
Under Linux it gives: 8.881784197E-16
Under Windows it gives: 8.8817841970013E-016

Tested under Linux with: PHP4 4.4.2-1+b1 (Debian package php4 4.4.2-1), PHP5 5.1.2-1+b1 (Debian package php5 5.1.2-1), PHP5 5.1.2 (Ubutu package php5 5.1.2-ubuntu3).
Tested under Windows with: PHP4 4.4.2, PHP5 5.1.4, PHP5 snapshot (5.2.0-dev of 05/30/2006), PHP6 snapshot (6.0.0 dev of 05/30/2006 8:30).

Btw, "3 * 1.36 - 4.08 == 0" returns true like you would expect.

Reproduce code:
---------------
<?php
var_dump( 3 * 1.35 - 4.05 == 0 );
print( 3 * 1.35 - 4.05 );
?>

Expected result:
----------------
bool(true)
0

Actual result:
--------------
bool(false)
8.881784197E-16