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List:       haskell-cafe
Subject:    Re: differentiation. Reply
From:       Jerzy Karczmarczuk <karczma () info ! unicaen ! fr>
Date:       2002-01-14 8:51:27
Message-ID: 3C429C0F.D6288314 () info ! unicaen ! fr
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Ketil Z Malde adds a comment concerning the query of Zhe Fu:
>

> >>> Is there any built-in functions in Haskell to implement
> >>> diffential operation and partial diffential operation?
> >>> Or can anyone give me some advices about how to implement them
> >>> with Haskell? Thanks.
 
> Jerzy Karczmarczuk has some interesting papers on his web site using a
> different approach to differentiation, maintaining, IIRC, a lazy list
> of all derivatives of functions.  I don't have the URL ready, but a
> your favorite search engine should be able to help you out.


===
1. First, I suggest to move this to Haskell-café. I leave the original
   address, though.

2. My work is about the "Automatic Differentiation" in Haskell. The paper
   http://users.info.unicaen.fr/~karczma/arpap/diffalg.pdf
   has been published in HOSC last year.
   But somebody might get interested in some geometric extensions thereof
   (differential forms)
   http://users.info.unicaen.fr/~karczma/arpap/ltforms.pdf


Jerzy Karczmarczuk


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