#16913: Error in prev()
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Reporter: ayyer | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-6.4
Component: combinatorics | Keywords: permutations, prev
Merged in: | Authors:
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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There is a flaw in the prev() method in combinat/permutation.py.
Here is an example.
{{{
sage: Permutation([1,4,3,2]).prev()
[1, 2, 4, 3]
}}}
The output should be [1, 4, 2, 3].
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Ticket URL: <http://trac.sagemath.org/ticket/16913>
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