[Haskell-cafe] [ANN] deka - decimal arithmetic
Roman Cheplyaka
roma at ro-che.info
Sat Feb 8 22:00:56 UTC 2014
* Omari Norman <omari at smileystation.com> [2014-02-08 16:45:02-0500]
> Also, note that you get 34 significant digits, but that doesn't mean the
> exponent is limited to 34.
>
> >>> let x = fromJust . strToDeka $ "3E-200"
> >>> let y = fromJust . strToDeka $ "4E-200"
> >>> x + y
> Deka {unDeka = 7E-200}
>
> ...which you could do in Fixed, true. If you defined E200 first. But,
> oops, now I need E250...
I see now. So this is a decimal floating-point numbers library, which
also attempts to track the precision of numbers. Does this sound right?
Roman
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