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 _______________________________________________ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe