Hello Nicolas, > How much "man-year" do you expect to put on this project? I mean, it > took us 6 years to develop MuPAD-Combinat. But of course, reusing past > experience, one can hope to go quite faster.
I've been relatively busy with school stuff since graduation will be here before I know it so I haven't had as much of a chance to work on this project as I'd like to. My primary motivation is/was to be able to work with tableaux and partitions from within SAGE. Thus, I've been mostly been implementing the combinatorial objects side of mupad-combinat. The translation from MuPAD into Python / SAGE has relatively painless. I've been pretty much just copying the overall structure of mupad-combinat while making it a bit more Pythonic where it can be. For example, I can do something along these lines sage: Permutation([3,4,1,5,2]).cycle_type().hook_lengths() [[4, 3, 1], [2, 1]] As a first goal, I just wanted to be able to do all the examples in http://mupad-combinat.sourceforge.net/doc/en/combinat/index.html from within SAGE. I'd say I'm not too far from being there. The biggest things I have left is the code for trees, integer vectors/matrices, and the stuff with the Littlewood-Richardson coefficients. I haven't thought too much about the overall structure of things or the best way to integrate them into the exisiting algebraic framework of SAGE. I figured that I could work that out a bit later once I got a better feel for the organization of things within SAGE. > We are having similar issues with trees and tableaux, and are in the > process of reorganizing them accordingly. See in particular: > > http://mupad-combinat.sourceforge.net/Wiki/Tableaux > > We would love to discuss such issues with others. The axiom workshop > in June is certainly a good occasion for this. I'd like to go, but I don't think that that will be possible due to costs. It's too bad that it isn't a month later since I'm planning to be in Austria around then. But, I'd be happy to listen / contribute to the discussion once classes finish for the semester, and I have a bit more time. --Mike P.S. Thanks for all the great work in mupad-combinat! --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://sage.scipy.org/sage/ and http://modular.math.washington.edu/sage/ -~----------~----~----~----~------~----~------~--~---