interval arithmetic for integers?
I'm looking to not reinvent the wheel. Is there an existing package that supports interval arithmetic on integers (or more)? A possible complication is that I'm hoping to include open intervals such as (GreaterEqThan 3). If there's not a package to go with, any pointers on the appopriate rules for this stuff? I started coding up multiplication and decided it was harder than I first thought... Thanks for your time, Nick
nicolas.frisby:
I'm looking to not reinvent the wheel.
Is there an existing package that supports interval arithmetic on integers (or more)? A possible complication is that I'm hoping to include open intervals such as (GreaterEqThan 3).
If there's not a package to go with, any pointers on the appopriate rules for this stuff? I started coding up multiplication and decided it was harder than I first thought...
Anything here? http://haskell.org/haskellwiki/Libraries_and_tools/Mathematics -- Don
Some of that is in the Ranged Sets library: http://ranged-sets.sourceforge.net/Ranged/ but it doesn't support Num. On 12/8/06, Nicolas Frisby <nicolas.frisby@gmail.com> wrote:
I'm looking to not reinvent the wheel.
Is there an existing package that supports interval arithmetic on integers (or more)? A possible complication is that I'm hoping to include open intervals such as (GreaterEqThan 3).
-- Taral <taralx@gmail.com> "You can't prove anything." -- Gödel's Incompetence Theorem
I did see that one on the wiki; but it doesn't seem to support the open intervals (i.e. (-inf, 3)) and I'd really like those. That is the leading candidate right now though... There was also this one: http://www.dinkla.net/fp/cglib.html It mentions "rangetrees" but I'm not sure if that's the kind I'm thinking of. That package has what seems like scary math. Thanks, Nick On 12/8/06, Taral <taralx@gmail.com> wrote:
Some of that is in the Ranged Sets library:
http://ranged-sets.sourceforge.net/Ranged/
but it doesn't support Num.
On 12/8/06, Nicolas Frisby <nicolas.frisby@gmail.com> wrote:
I'm looking to not reinvent the wheel.
Is there an existing package that supports interval arithmetic on integers (or more)? A possible complication is that I'm hoping to include open intervals such as (GreaterEqThan 3).
-- Taral <taralx@gmail.com> "You can't prove anything." -- Gödel's Incompetence Theorem
On 12/8/06, Nicolas Frisby <nicolas.frisby@gmail.com> wrote:
I did see that one on the wiki; but it doesn't seem to support the open intervals (i.e. (-inf, 3)) and I'd really like those.
Oh, it does. See BoundaryAboveAll and BoundaryBelowAll. -- Taral <taralx@gmail.com> "You can't prove anything." -- Gödel's Incompetence Theorem
Fantastic! Just another bit of evidence that Haskell Cafe + one night's sleep can save a great deal of work. :) Thanks for pointing that out, Nick On 12/8/06, Taral <taralx@gmail.com> wrote:
On 12/8/06, Nicolas Frisby <nicolas.frisby@gmail.com> wrote:
I did see that one on the wiki; but it doesn't seem to support the open intervals (i.e. (-inf, 3)) and I'd really like those.
Oh, it does. See BoundaryAboveAll and BoundaryBelowAll.
-- Taral <taralx@gmail.com> "You can't prove anything." -- Gödel's Incompetence Theorem
participants (3)
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dons＠cse.unsw.edu.au -
Nicolas Frisby -
Taral