#876: Implement or wrap Braid Groups
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Reporter: robertwb | Owner: robertwb
Type: enhancement | Status: new
Priority: major | Milestone: sage-wishlist
Component: combinatorics | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Comment(by wdj):
Replying to [comment:5 kcrisman]:
> Incidentally, apparently the braid package is now autoloaded, though it
doesn't seem to be used anywhere. This is improperly documented in
interfaces/gap.py, though:
> {{{
> The packages sonata, guava, factint, gapdoc, grape, design, toric,
> and laguna are loaded in all cases before the workspace is saved,
> if they are available.
> }}}
> {{{
> g = Gap(use_workspace_cache=False, max_workspace_size=None)
> for pkg in ['ctbllib', 'sonata', 'guava', 'factint', \
> 'gapdoc', 'grape', 'design', \
> 'toric', 'laguna', 'braid']: # NOTE: Do *not* autoload
hap - it screws up PolynomialRing(Rationals,2)
> try:
> g.load_package(pkg, verbose=verbose)
> }}}
I think this problem with HAP was fixed long ago.
Also, I think I had to repackage braid recently because of some loading
problems it had. I don't remember the details. Maybe it was because of a
problem with gap 4.4.12 and since we use 4.4.10, it is not an issue?
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/876#comment:6>
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