[Haskell-cafe] 9.3 - (2 * 4.5) => 0.3000000000000007

[Austin Seipp]

This is a rounding error. It will happen in any language due to the
imprecision of floats; for example, using Ruby:

$ irb
1.9.3-p286 :001 > 9.3 - (2 * 4.5)
 => 0.3000000000000007
1.9.3-p286 :001 > ^D
$

Read this:

http://floating-point-gui.de/

On Wed, Jan 16, 2013 at 7:25 AM, ivan dragolov <ivan at dragolov.net> wrote:
>
> 9.3 - (2 * 4.5) => 0.3000000000000007
>
> I expected 0.3
>
> ?
>
> --
> Иван Драголов
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-- 
Regards,
Austin