#20604: failing doctest with coxeter3
-------------------------------------+-------------------------------------
Reporter: chapoton | Owner:
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-7.3
Component: packages: | Resolution:
optional | Merged in:
Keywords: | Reviewers:
Authors: Frédéric Chapoton | Work issues:
Report Upstream: N/A | Commit:
Branch: u/chapoton/20604 | 531a1d497d17cfa53bdae7f0f5f014fecdb841d0
Dependencies: | Stopgaps:
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Comment (by chapoton):
Failure comes from the absence of the matrix method:
{{{
Failure in _test_codegrees:
Traceback (most recent call last):
File "/home/patchbot/sage-patchbot/local/lib/python2.7/site-
packages/sage/misc/sage_unittest.py", line 283, in run
test_method(tester = tester)
File "/home/patchbot/sage-patchbot/local/lib/python2.7/site-
packages/sage/categories/finite_complex_reflection_groups.py", line 283,
in _test_codegrees
codegrees = self.codegrees()
File "/home/patchbot/sage-patchbot/local/lib/python2.7/site-
packages/sage/categories/finite_coxeter_groups.py", line 285, in codegrees
return tuple(d - 2 for d in self.degrees())
File "/home/patchbot/sage-patchbot/local/lib/python2.7/site-
packages/sage/categories/finite_coxeter_groups.py", line 259, in degrees
for I in self.irreducible_component_index_sets()), ())
File "/home/patchbot/sage-patchbot/local/lib/python2.7/site-
packages/sage/categories/finite_coxeter_groups.py", line 259, in <genexpr>
for I in self.irreducible_component_index_sets()), ())
File "/home/patchbot/sage-patchbot/local/lib/python2.7/site-
packages/sage/categories/finite_coxeter_groups.py", line 250, in
degrees_of_irreducible_component
roots = c.matrix().change_ring(QQbar).charpoly().roots()
File "sage/structure/element.pyx", line 413, in
sage.structure.element.Element.__getattr__
(build/cythonized/sage/structure/element.c:4649)
return getattr_from_other_class(self, P._abstract_element_class,
name)
File "sage/structure/misc.pyx", line 253, in
sage.structure.misc.getattr_from_other_class
(build/cythonized/sage/structure/misc.c:1763)
raise dummy_attribute_error
AttributeError: 'CoxeterGroup_with_category.element_class' object has
no attribute 'matrix'
}}}
when trying to compute `c.matrix().change_ring(QQbar).charpoly().roots()`
--
Ticket URL: <http://trac.sagemath.org/ticket/20604#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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