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

16 Jan 2013

      On 16/01/2013 13:55, Tom Davie wrote:
...
Prelude> import Data.Ratio
Prelude Data.Ratio> 93 % 10 - (2 * 9 % 2)
3 % 10
Or even just a type annotation:

Prelude> (9.3 - (2 * 4.5)) :: Rational
3 % 10
...
On 16 Jan 2013, at 13:25, ivan dragolov mailto:ivan@dragolov.net> wrote:
...
9.3 - (2 * 4.5) => 0.3000000000000007
I expected 0.3
-- 
David Turner
Senior Consultant
Tracsis PLC

Tracsis PLC is a company registered in
England and Wales with number 5019106.