#13440: Adding reverse_edge() function to DiGraph
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Reporter: egunawan | Owner: jason, ncohen, rlm
Type: enhancement | Status: needs_work
Priority: major | Milestone: sage-5.7
Component: graph theory | Resolution:
Keywords: digraph | Work issues:
Report Upstream: N/A | Reviewers: Gregg Musiker
Authors: Emily Gunawan | Merged in:
Dependencies: | Stopgaps:
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Comment (by egunawan):
Replying to [comment:23 dcoudert]:
Thank you for the reply. For reverse_edge (not reverse_edges), is the
following behavior OK?
If !``self!`` does not allow multiple edges (such as the following
example),[[BR]] then function may delete the input
edge::[[BR]] [[BR]] sage: D = !DiGraph( [(1,2), (2,1)]
)[[BR]] sage: D.edges()[[BR]] [(1, 2, None), (2, 1,
None)][[BR]] sage: re = D.reverse_edge(1,2) [[BR]]
sage: re.edges()[[BR]] [(2, 1, None)]
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13440#comment:24>
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