Movatterモバイル変換

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Thiscompound of 5 components (1octahedron + 4tetrahedra) can well be considered connectedback into a single component, if each pair of coplanar faces rather becomes considered as a singlecompound entity instead.

Incidence matrix

4  * * |  3  0  0 |  3 0 0  (hidden)* 12 * |  1  2  0 |  2 1 0*  * 6 |  0  0  4 |  0 2 2-------+----------+-------1  1 0 | 12  *  * |  2 0 00  2 0 |  * 12  * |  1 1 00  0 2 |  *  * 12 |  0 1 1-------+----------+-------1  2 0 |  2  1  0 | 12 * *0  3 3 |  0  3  3 |  * 4 *  2{3}-compound0  0 3 |  0  0  3 |  * * 4