Incorrect Calculation Loop

[rejoice]

I have a code like this:

$i = 2;
while ($i >= -0.2) {
   echo $i . "<BR>";
   $i = $i + (-0.2);
}

but, the result will be:
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
2.77555756156E-016
-0.2

How come 0.2 minus 0.2 equal to 2.77555756156E-016? Can any one show the way out of this? Many thanks.

[bastien]

use number_format() function to limit the decimals to 2

echo number_format($i,'.') . "<BR>";

[rejoice]

Thank you very much😃 😃 😃

[dalecosp]

Isn't it:

echo number_format($i, 1, '.', '') . "<BR>";

??