Description:
------------
When doing certain operations with minus operator the result is not correct. It seems to affect numbers ending in .01 when doing substraction operations (except for 1.01 that seems to work fine)



Test script:
---------------
$test = 15.01 - 15;
echo $test;

$test = 50.01 - 50;
echo $test;

Expected result:
----------------
The result should be 0.01 

Actual result:
--------------
I returns results like 0.0099999999999998