#15491: directed immutable graphs report twice too many edges
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Reporter: ncohen | Owner:
Type: defect | Status: new
Priority: major | Milestone: sage-5.13
Component: graph theory | Keywords:
Merged in: | Authors: Nathann Cohen
Reviewers: | Report Upstream: N/A
Work issues: | Branch:
Commit: | Dependencies:
Stopgaps: |
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As reported on #15278 :
{{{
sage: g=digraphs.RandomDirectedGNP(10,.3)
sage: gi=DiGraph(g,data_structure="static_sparse")
sage: print gi.size(), len(gi.edges())
68 34
}}}
Simplest bug eve : Sage was taught to return the wrong thing. The sum of
all arcs in the digraph, plus the sum of all arcs in the reversed digraph.
That's clearly more than necessary `:-P`
Sorryyyyyyyyyyyyyyyyyyyy !!
Nathann
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Ticket URL: <http://trac.sagemath.org/ticket/15491>
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