#11360: The Rubik's Cube group in Sage doesn't support many basic operations
for a
dumb reason.
------------------------------------+-----------------------------------
Reporter: was | Owner: jason, ncohen, rlm
Type: enhancement | Status: needs_work
Priority: minor | Milestone: sage-5.12
Component: group theory | Resolution:
Keywords: | Merged in:
Authors: Travis Scrimshaw | Reviewers: Nathann Cohen
Report Upstream: N/A | Work issues:
Branch: | Dependencies:
Stopgaps: |
------------------------------------+-----------------------------------
Changes (by jdemeyer):
* status: positive_review => needs_work
* milestone: sage-5.11 => sage-5.12
Comment:
{{{
sage -t --long devel/sage/sage/groups/perm_gps/cubegroup.py
**********************************************************************
File "devel/sage/sage/groups/perm_gps/cubegroup.py", line 1067, in
sage.groups.perm_gps.cubegroup.CubeGroup.solve
Failed example:
rubik.solve(state, algorithm='gap') # long time
Exception raised:
Traceback (most recent call last):
File "/mazur/release/merger/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 486, in _run
self.execute(example, compiled, test.globs)
File "/mazur/release/merger/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/doctest/forker.py", line 845, in execute
exec compiled in globs
File "<doctest sage.groups.perm_gps.cubegroup.CubeGroup.solve[4]>",
line 1, in <module>
rubik.solve(state, algorithm='gap') # long time
File "/mazur/release/merger/sage-5.11.rc0/local/lib/python2.7/site-
packages/sage/groups/perm_gps/cubegroup.py", line 1086, in solve
hom = G._gap_().EpimorphismFromFreeGroup()
NameError: global name 'G' is not defined
**********************************************************************
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/11360#comment:15>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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