Regular dodecahedron
Configuration matrix

The configuration matrix is a matrix in which the rows and columns correspond to the elements of a polyhedron as in the vertices, edges, and faces. The diagonal of a matrix denotes the number of each element that appears in a polyhedron, whereas the non-diagonal of a matrix denotes the number of the column's elements that occur in or at the row's element. The regular dodecahedron can be represented in the following matrix: {\displaystyle {\begin{bmatrix}20&3&3\\2&30&2\\5&5&12\end{bmatrix}}}
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