Re: rounding in haskell

[John Hughes]

> > Prelude> 1.0 - 0.8 - 0.2
> > -1.49012e-08

Taking Ian Stark's example a little bit further,

        Main> let x=6.0e-8 in (1.0,1.0+x,1.0==1.0+x)
        (1.0,1.0,False)

is a useful reminder that show isn't one-to-one.

John Hughes