#15669: Errors with graph complement
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       Reporter:  tscrim        |        Owner:  tscrim
           Type:  defect        |       Status:  new
       Priority:  major         |    Milestone:  sage-6.1
      Component:  graph theory  |   Resolution:
       Keywords:                |    Merged in:
        Authors:                |    Reviewers:
Report Upstream:  N/A           |  Work issues:
         Branch:                |       Commit:
   Dependencies:                |     Stopgaps:
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Comment (by ncohen):

 Hello Travis !

 Well, I guess you can fix this one yourself ! You should just add a
 `immutable=True` to the call of `copy` in this method. Besides, your
 second example of code is not really a bug. `GC` is what it should be, but
 if you plot the complement of a graph with the same layout as for the
 original graph, it so happens that the edges are all horizontal too. You
 can add a `layout="spring"` to `plot()` to emphasize it.

 Nathann

--
Ticket URL: <http://trac.sagemath.org/ticket/15669#comment:1>
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