Hi Sage Devel,
If you noticed the publicity a few months ago about E8, "the Sage
supercomputer", etc.,
then you might be interested in this project. The software here,
which is a mostly
well documented (but sometimes not) not unpleasant C++ program
http://www.liegroups.org/software/download/
was the code used (run on sage.math.washington.edu) to do "the E8 calculation".
It is actually much more general code, capable I think of doing many interesting
things related to lie groups, and do them very very quickly (that's
the key point).
It's completely unique, interesting, and powerful code.
A few minutes ago I got word from the ATLAS of Lie Groups group that "William,
Well, I think everybody has had their say and the conclusion is unanimous:
Atlas is GPL. (There still is some discussion about which version of GPL
and where to put the notification. This will be straightened out soon.)"
So is anybody interested in thinking through how this could perhaps be
made a standard and useful part of Sage? Let me know.
--
William Stein
Associate Professor of Mathematics
University of Washington
http://wstein.org
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