Dear David, dear Marc, dear LiE fans,
On Sat, Oct 17, 2009 at 12:44:12AM -0700, Robert Bradshaw wrote:
> On Oct 16, 2009, at 6:59 PM, David Simmons-Duffin wrote:
>
> > A few months ago, I wrote the Cython list asking for some help writing
> > a cython interface to the computer algebra package LiE.
> >
> > http://www-math.univ-poitiers.fr/~maavl/LiE/
> >
> > There was some mention of interest in such a thing among sage people,
> > and possibly others. But I needed the interface for a specific
> > project, and it was recommended that I concentrate on writing it for
> > that purpose and then think later about what to do publicly with the
> > code. That project is now mostly finished, and I'd like to share the
> > LiE python module.
> >
> > Any advice on the best way of making it accessible? It's not the most
> > beautiful piece of code ever -- I was a cython novice when I started
> > writing it. But it's quite functional, and capable of doing a wide
> > range of lie group representation theory computations in python.
> > Ideally, I want it to be easy for other people to contribute to and
> > improve the code, without too much oversight from me. I don't know
> > how much time I'll have personally to work on it, but I know it's
> > useful, so I thought it was important to get it out there.
> >
> > Should I use github? Google code? Something else? Will it be easy to
> > let others edit/patch/document the code?
Excellent, thanks very much for your work on this!
How does it overlap / interact with the Sage Lie spkg?
By the way: what's the status of this spkg? Is there some
documentation somewhere of what can be done with it from Sage? (I just
tried lie-2.2.2.p3 but it does not seem compile on my 32bits i686
ubuntu box).
In the longer run, it would be great to synchronise this project with
the current development of root systems (and in particular Weyl
characters) in Sage, to merge whatever can be merged and foster
consistent interfaces and interoperability for the rest.
You can browse through the (in development) documentation at:
http://combinat.sagemath.org/doc/reference/combinat/root_systems.html
(what's there will be integrated shortly into Sage)
Best,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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