#17528: bug in difference_family(9,3)
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Reporter: vdelecroix | Owner:
Type: defect | Status: needs_info
Priority: major | Milestone: sage-6.5
Component: combinatorial | Resolution:
designs | Merged in:
Keywords: | Reviewers:
Authors: Vincent Delecroix | Work issues:
Report Upstream: N/A | Commit:
Branch: public/17528 | 2846ea403672a1f110098ddfecd99f08ea1ea4ef
Dependencies: | Stopgaps:
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Changes (by ncohen):
* status: needs_review => needs_info
Comment:
Also: instead of checking that the cosets are disjoint like you do,
wouldn't it be simpler/faster to:
1) Take all elements of A
2) Multiply it in any way possible (except by 1) and check that the result
is not in A ?
It removes `already_in` and `nb_seen`.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/17528#comment:8>
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