#18317: General documentation about graph data structures
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       Reporter:         |        Owner:
  ncohen                 |       Status:  needs_review
           Type:         |    Milestone:  sage-6.7
  enhancement            |   Resolution:
       Priority:  major  |    Merged in:
      Component:  graph  |    Reviewers:
  theory                 |  Work issues:
       Keywords:         |       Commit:
        Authors:         |  b7d90367738afb7bfcf2d97701451fccbeebf31f
  Nathann Cohen          |     Stopgaps:
Report Upstream:  N/A    |
         Branch:         |
  public/18317           |
   Dependencies:         |
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Comment (by darij):

 Replying to [comment:6 ncohen]:
 > Yesyes. Did you find one that I missed in my last commit?

 No, sorry, I meant the "you" as a generic. The actual you has fixed this
 in your last commit.

 > Hmmm.. Well, I'm used to document a feature or a corner-case, but it's
 my first time trying to document something which is not there. And if
 there was some place to do that, it is very unlikely that it would also be
 found by whoever is interested. In `GenericGraph.edges` perhaps?

 Sorry, I mean document, not doctest. Just say that edges in a multigraph
 are stored as elements of multisets, so if there are two edges from `a` to
 `b` in an unlabelled (di)multigraph, then they will be implemented not as
 two separate objects but as one object appearing twice in a multiset of
 edges. Say that this is not the convention used in quiver theory, and that
 the latter can be simulated using labelled (di)graphs.

--
Ticket URL: <http://trac.sagemath.org/ticket/18317#comment:7>
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