Adjacency Matrix/Examples/Multigraph
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Example of Adjacency Matrix
The elements of the adjacency matrix of a multigraph are integers, and the diagonal elements are all zero:
$\qquad \begin{pmatrix} 0 & 1 & 0 & 0 & 0 & 0 \\ 1 & 0 & 2 & 1 & 0 & 0 \\ 0 & 2 & 0 & 1 & 0 & 0 \\ 0 & 1 & 1 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 & 0 & 3 \\ 0 & 0 & 0 & 0 & 3 & 0 \\ \end{pmatrix}$