Double doesn't have so much precision at that value. It has nothing to do with the round function. Prelude> 3.499999999999999 :: Double 3.499999999999999 Prelude> 3.4999999999999999 :: Double 3.5 On Sun, May 29, 2011 at 2:39 AM, Prashant Shah wrote:

Hi,

This is my first time with Haskell.

Here is what I found while trying out some examples :

Prelude> round 3.499999999999999 3 it :: Integer

Prelude> round 3.4999999999999999 4 it :: Integer

---------------

Prelude> round 111111.49999999999 111111 it :: Integer Prelude> round 111111.499999999999 111112 it :: Integer

Is it something to do with the CPU register size ?

_______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners