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networks[chrompoly] - chromatic polynomial of an undirected graph
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Calling Sequence
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chrompoly(G, lambda)
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Parameters
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G
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undirected graph or network
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lambda
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variable in chromatic poly (usually number of colors)
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Description
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This routine returns the chromatic polynomial of the graph G as a polynomial in lambda. The value of this polynomial gives the number of proper vertex-colorings of G using lambda colors.
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The procedure is normally loaded via the command with(networks) but can also be referenced using the full name networks[chrompoly](...).
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