Description:
------------
In loops like While and For with increases with point decimal fails the precision.

Reproduce code:
---------------
$i=71;
$i2 = 82;
$increases = .1;
for($i; $i <= $i2; $i = $i + $increases)
	{
	echo "$i<br>";
	}


//**** or ******

$i=1.5;
$i2 = 2;
$increases = .001;
while($i <= $i2)
	{
	echo "$i<br>";
	$i = $i + $increases;
	}

Expected result:
----------------
with
$i=71;
$i2 = 82;
$increases = .1;
it must be:
71
71.1
.
.
.
81.9
82
***************
with
$i=1.5;
$i2 = 2;
$increases = .001;
it must be:
1.5
1.501
1.502
.
.
.
1.999
2

Actual result:
--------------
both with
$i=71;
$i2 = 82;
generates:
71
71.1
.
.
79.8
79.899999999999
79.999999999999
.
.
81.899999999999
81.999999999999
***************
both with
$i=1.5;
$i2 = 2;
$increases = .001;
generates:
1.5
1.501
1.502
.
.
1.954
1.9549999999999
1.9559999999999
.
.
1.9989999999999
1.9999999999999