#8414: lattice -> domain in weyl_groups.py
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Reporter: bump | Owner: bump
Type: defect | Status: needs_review
Priority: major | Milestone: sage-4.4
Component: combinatorics | Keywords:
Author: Daniel Bump | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Description changed by bump:
Old description:
> WeylGroups and WeylGroupElements have a method lattice() and also an
> attribute _lattice. At one time this pointed to the ambient lattice, but
> now it points to the ambient space.
>
> For consistency perhaps the name of the method and attribute should
> therefore be changed to space(). The patch makes this change.
>
> The patch also makes reflections of the Weyl group a
> family and adds methods {{{inverse_family}}} and {{{has_key}}} to
> the method family, per Nicolas' suggestion.
New description:
WeylGroups and WeylGroupElements have a method lattice() and also an
attribute _lattice. At one time this pointed to the ambient lattice, but
now it points to the ambient space.
After some discussion here:
http://groups.google.com/group/sage-
devel/browse_thread/thread/ad0c77557e78313f/9cfd6f09bcd1de2f?#9cfd6f09bcd1de2f
it has been decided that the method and attribute should be called
{{{domain}}}.
The patch also makes reflections of the Weyl group a
family and adds methods {{{inverse_family}}} and {{{has_key}}} to
the method family, per Nicolas' suggestion.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8414#comment:7>
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