#6621: [with patch, needs review] Permutation.inverse too slow
---------------------------+------------------------------------------------
Reporter: aclaesson | Owner: mhansen
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.1.1
Component: combinatorics | Keywords:
Reviewer: | Author: Anders Claesson
Merged: |
---------------------------+------------------------------------------------
Comment(by ddrake):
Uh oh, this doesn't pass doctests: I get
{{{
File
"/var/tmp/sage-4.1/devel/sage/sage/combinat/symmetric_group_algebra.py",
line 141:
sage: QS3.cpi([1,1,1])
Exception raised:
Traceback (most recent call last):
File "/var/tmp/sage-4.1/local/bin/ncadoctest.py", line 1231, in
run_one_test
self.run_one_example(test, example, filename, compileflags)
File "/var/tmp/sage-4.1/local/bin/sagedoctest.py", line 38, in
run_one_example
OrigDocTestRunner.run_one_example(self, test, example, filename,
compileflags)
File "/var/tmp/sage-4.1/local/bin/ncadoctest.py", line 1172, in
run_one_example
compileflags, 1) in test.globs
File "<doctest __main__.example_6[5]>", line 1, in <module>
QS3.cpi([Integer(1),Integer(1),Integer(1)])###line 141:
sage: QS3.cpi([1,1,1])
File "/var/tmp/sage-4.1/local/lib/python/site-
packages/sage/combinat/symmetric_group_algebra.py", line 158, in cpi
cpi += big_coeff *
character_table[p_index][np.index(g.inverse().cycle_type())] * self(g)
AttributeError: 'list' object has no attribute 'cycle_type'
}}}
Instead of {{{return w}}}, you need {{{return Permutation(w)}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6621#comment:1>
Sage <http://sagemath.org/>
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