#14547: McLaughlin graph constructor
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Reporter: ncohen | Owner: jason, ncohen, rlm
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-5.10
Component: graph theory | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Nathann Cohen | Merged in:
Dependencies: | Stopgaps:
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Changes (by ncohen):
* status: new => needs_review
Old description:
> Annnnnnnnnnnd I think that this is the last one I can steal from
> www.win.tue.nl/~aeb/ without help in maths `^^;`
>
> The tests are rather long, but they are not flagged with "long time".
> This is because they are already flagged with "optional gap_packages",
> and
> 1) I have no idea how flags should be stacked in such situations
> 2) with an "optional" flag the doctests will be almost never run, so
> let's not make it even rarer `:-P`
>
> And. I computed some layouts for this graph, all of them looking like a
> giant black thing. That was in png. I also tried svg, and you can check
> at this address what we are missing by not adding the layout to Sage's
> constructor :
>
> Nathann
New description:
Annnnnnnnnnnd I think that this is the last one I can steal from
www.win.tue.nl/~aeb/ without help in maths `^^;`
The tests are rather long, but they are not flagged with "long time". This
is because they are already flagged with "optional gap_packages", and
1) I have no idea how flags should be stacked in such situations
2) with an "optional" flag the doctests will be almost never run, so let's
not make it even rarer `:-P`
And. I computed some layouts for this graph, all of them looking like a
giant black thing. That was in png. I also tried svg, and you can check at
this address (if you can display it `:-P`) what we are missing by not
adding the layout to Sage's constructor :
http://www.steinertriples.fr/10.svg
http://www.steinertriples.fr/11.svg
http://www.steinertriples.fr/26.svg
Nathann
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14547#comment:1>
Sage <http://www.sagemath.org>
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