Hi, On 1 January 2015 at 22:01, Ralf Stephan <[email protected]> wrote: > Hello, > I'm thinking about implementing a formula guesser for C-finite integer > sequences. The algorithm, which is not as complicated as the one for D-finite > sequences, needs SymPy's rsolve on one hand, and on the other an > implementation of the LLL algorithm. > > My questions: > - is there interest to have that in SymPy? I have a working patch for Sage > but I've been waiting for a year now for review and it uses Pari for the LLL. > - if there is interest, I understand the SymPy package does not depend on > external specialized numerics libraries except for mpmath? > - if so, the only Python LLL implementation AFAIK is in pymatgen which has an > MIT license. Could this be used, assuming it would be technically useful? > > I'm only sticking my toe in the water for the moment and would be glad if you > could give me orientation. >
mpmath implements PSLQ algorithm, thought it might be insufficient for the problem your're solving. Implementation of LLL is welcome, as any other contributions extending SymPy's functionality. Reusing MIT or BSD (or equivalent permissive license) code is perfectly possible, as long as you attribute the original work properly. Mateusz > Regards, > > -- > You received this message because you are subscribed to the Google Groups > "sympy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/sympy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sympy/fc8c58e9-1ec8-4c2b-8e57-89017dc01100%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/CAGBZUCabk7CD2HiDnocsu4TS_mLJ1f6Leh71vbdT5LhLjB2u-g%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
