#19301: Improved Graph.complement() (and cleanup in dense_graph.pyx)
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Reporter: | Owner:
ncohen | Status: needs_review
Type: | Milestone: sage-6.9
enhancement | Resolution:
Priority: major | Merged in:
Component: graph | Reviewers:
theory | Work issues:
Keywords: | Commit:
Authors: | 548b8f012647c1fae0ab8d080f2f27a382c39d51
Nathann Cohen | Stopgaps:
Report Upstream: N/A |
Branch: |
u/ncohen/19301 |
Dependencies: |
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Comment (by ncohen):
Yo !
> I like this patch ;)
Yeah, me too. I have been giving a bad look to this `complement` function
for a long time now, as it was clearly wasteful. Incidentally, this will
"produce" many graphs with a 'dense' backend, while they are mostly non-
existent in Sage nowadays. Perhaps new bugs related to this backend will
pop out, or none if we are lucky.
> However, there is a small issue:
Arg, right. There were *two* checks for multiple edges in the same
function, so I removed one but the error message changed. Will be fixed in
a second.
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/19301#comment:3>
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