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

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 wrote:

9.3 - (2 * 4.5) => 0.3000000000000007

I expected 0.3

?

-- Иван Драголов dragolov.net

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