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GraphTheory[GraphSpectrum]
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Calling Sequence
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GraphSpectrum(G)
GraphSpectrum(G, exact)
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Description
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The GraphSpectrum command returns the spectrum of the eigenvalues of a specified graph. The output is a list  . Each element of  is a list of size 2, where the first element is an eigenvalue and the second element is its multiplicity. If the second argument is provided, the evaluation of the eigenvalues are not carried out using floating points.
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Examples
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![[[-1.618033990, 2], [.6180339900, 2], [2.000000000, 1]]](/support/helpjp/helpview.aspx?si=6063/file01816/math68.png)
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![[[-1/2-(1/2)*5^(1/2), 2], [(1/2)*5^(1/2)-1/2, 2], [2, 1]]](/support/helpjp/helpview.aspx?si=6063/file01816/math75.png)
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