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Sage-Combinat
Sage-Combinat is a software project whose mission statement is: to improve the open source mathematical system Sage as an extensible toolbox for computer exploration in algebraic combinatorics, and foster code sharing between researchers in this area.
In practice, Sage-combinat is a collection of experimental patches (i.e. extensions) on top of Sage, developed by a community of researchers. The intent is that most of those patches get eventually integrated into Sage as soon as they are mature enough, with a typical short life-cycle of a few weeks. In other words: just install Sage, and you will benefit from all the Sage-combinat development, except for the latest bleeding edge features.
NEWS
June 14-18, 2010: Joint Sage-Combinat and Chevie Workshop in Orsay
May 3-7, 2010: Sage Days 20.5 in Toronto
Organized by Nantel Bergeron, FrancoSaliola and Mike Zabrocki, again with a serious algebraic combinatorics slant
Past news
February 22-26, 2010: Sage days 20
The thematic month MathInfo 2010 at CIRM, Marseille included a Sage days week. FlorentHivert, NicolasThiéry, and FrancoSaliola were among the organizers and there was a serious combinatorics slant.
July 25-29, 2009: *-Combinat 2009
We held an International Sage Workshop on Free and Practical Software for Algebraic Combinatorics at RISC, Linz, Austria, right after FPSAC'09
May 25th, 2009: The Sage-words library demonstrated at the 2nd Canadian Discrete and Algorithmic Mathematics Conference CanaDAM'09 Sage worksheet, PDF.
April 15th, 2009: Software demonstration accepted for FPSAC'09 PDF, LaTeX Source LaTeX bibliography
January 26-30, 2009: Sage-Combinat Workshop in Orsay
- 2008-06-19: MuPAD-Combinat join forces with Sage
Sage-combinat was born as a partial port of MuPAD-Combinat. After months of discussions and experiments, an enthusiastic consensus emerged in the MuPAD-Combinat community to join Sage. Sage-combinat henceforth became the natural successor of MuPAD-Combinat.
- The transition was a massive investment (and is not yet completely over): seven years of hard work to port over! However a lot of experience was gained since 2000, and most of the design was pretty clear, and we could *share* the work.
Who are we? What is Sage-Combinat used for?
How to participate and contribute
Communication
- Join our mailing lists:
- Announcement mailing list (to come)
sage-combinat-devel: Developers' mailing list
sage-combinat-commits: A low traffic mailing list which receives an automatic notice whenever a sage-combinat related ticket is modified (and eventually whenever a commit is done on the patch server).
sage-combinat-days: Mailing list for the organisation of Sage-Combinat days
Check the road map and current status
Post bug reports, suggestions, patches on the Sage-Combinat trac server or on the mailing list.
Cite Sage-Combinat when you use it for research publications.
Cool pictures we produced with Sage-Combinat for our research
Code
The collection of patches is managed using a patch server (mercurial queues). Use it to try out the latest experimental features, or contribute your own patches!
Browse the Sage sources with the Sage-combinat patches applied
Please read the Step by step tutorial (in particular, how to download Sage-Combinat)
For the curious: Technical background on the Sage-Combinat patch server (messy).
For hg/mercurial lovers: Mercurial: The Definite Guide an e-book by Bryan O'Sullivan
Design
Have a look and participate to design discussions.
Contribute to the list of quirks and weirdness issues in the *-Combinat design.