[Haskell-cafe] Directed rounding in haskell ?

Yitzchak Gale gale at sefer.org
Fri Apr 11 06:20:47 UTC 2014


It might also be worthwhile to have a look at some
prior art:

http://hackage.haskell.org/package/Ranged-sets

On Thu, Apr 10, 2014 at 5:15 PM, Alp Mestanogullari <alpmestan at gmail.com> wrote:
> Maybe these packages could be relevant/useful:
> - https://github.com/ekmett/rounded
> - https://github.com/ekmett/intervals
>
>
> On Mon, Apr 7, 2014 at 4:12 PM, Dominik Peteler <haskell at with-h.at> wrote:
>>
>> Hello list,
>>
>> I'm going to implement an interval arithmetic library (following the IEEE
>> P1788) in Haskell and for
>> that I need support for directed rounding to the nearest floating point
>> number. I had a quick look at the Decimal package which comes with the
>> `roundTo` function for rounding to a specified number of decimal places
>> but it doesn't provide directed rounding.
>> Is there way to get directed rounding to to the nearest float (maybe
>> even with machine floats) ?
>>
>> I'm also aware of the AERN-* packages but they seem to be unmaintained. At
>> least there is no version which builds with the current GHC. Does
>> anybody know something about that ?
>>
>> Regards
>>
>> dominik
>>
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>
>
>
> --
> Alp Mestanogullari
>
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