Combinatorica versus new graphs in V8
- To: mathgroup at smc.vnet.net
- Subject: [mg132474] Combinatorica versus new graphs in V8
- From: "E. Martin-Serrano" <eMartinSerrano at telefonica.net>
- Date: Wed, 26 Mar 2014 03:23:09 -0400 (EDT)
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- Delivered-to: l-mathgroup@wolfram.com
- Delivered-to: mathgroup-outx@smc.vnet.net
- Delivered-to: mathgroup-newsendx@smc.vnet.net
Hi,
I am unable to see how to implement multi edge graphs for pairs of vertices
in V8.
With the =91Combinatorica=92 package this was easy to do as in
<< Combinatorica`
g = Combinatorica`Graph[{{{1, 2}}, {{2, 3}}, {{2, 3}}, {{2, 3}} , {{2, 3}}},
{{{0, 0}}, {{1, 1}}, {{2, 0}}}]
ShowGraph[g]
Here I have three =91{2,3}=92 concurrent edges for the vertices pair {2,3}
The following should be equivalent for the V8 kernel implementation of
graphs
System`Graph[{UndirectedEdge[1,2], UndirectedEdge[2,3], UndirectedEdge[2,3],
UndirectedEdge[2,3], UndirectedEdge[2,3]},
VertexCoordinates -> {{0, 0}, {1, 1}, {2, 0}}]
But the multiple edges feature does not work in the way it did in
=91Combinatorica=92 (It does not work in any way).
Please, could anyone say what I am missing here?
E. Martin
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- Follow-Ups:
- Re: Combinatorica versus new graphs in V8
- From: Murray Eisenberg <murray@math.umass.edu>
- Re: Combinatorica versus new graphs in V8