Acronym | ohopy, pt || oho |
Name | (degenerate) octahemioctahedron pyramid |
Circumradius | ∞ i.e. flat in euclidean space |
Dihedral angles | |
Face vector | 13, 36, 36, 13 |
Confer |
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It either can be thought of as a degenerate 4D segmentotope with zero height, or as a 3D euclidean decomposition of the larger base into smaller bits.
Incidence matrix according to Dynkin symbol
oβ3oo3ox&#x → height = 0 (pt || oho) o.3o.3o. | 1 * ♦ 12 0 0 | 12 12 0 0 0 | 4 4 4 0 both( .o3.o3.o ) | * 12 | 1 2 2 | 2 2 1 1 2 | 1 1 2 1 --------------------+------+----------+-------------+-------- both( oo3oo3oo&#x ) | 1 1 | 12 * * | 2 2 0 0 0 | 1 1 2 0 both( .. .. .x ) | 0 2 | * 12 * | 1 0 0 1 1 | 0 1 1 1 sefa( .β3.o .. ) | 0 2 | * * 12 | 0 1 1 0 1 | 1 0 1 1 --------------------+------+----------+-------------+-------- both( .. .. ox&#x ) | 1 2 | 2 1 0 | 12 * * * * | 0 1 1 0 sefa( oβ3oo ..&#x ) | 1 2 | 2 0 1 | * 12 * * * | 1 0 1 0 .β3.o .. ♦ 0 3 | 0 0 3 | * * 4 * * | 1 0 0 1 both( .. .o3.x ) | 0 3 | 0 3 0 | * * * 4 * | 0 1 0 1 sefa( .β3.o3.x ) | 0 6 | 0 3 3 | * * * * 4 | 0 0 1 1 --------------------+------+----------+-------------+-------- oβ3oo ..&#x ♦ 1 3 | 3 0 3 | 0 3 1 0 0 | 4 * * * both( .. oo3ox&#x ) ♦ 1 3 | 3 3 0 | 3 0 0 1 0 | * 4 * * sefa( oβ3oo3ox&#x ) ♦ 1 6 | 6 3 3 | 3 3 0 0 1 | * * 4 * .β3.o3.x ♦ 0 12 | 0 12 12 | 0 0 4 4 4 | * * * 1 starting figure: ox3oo3ox&#x
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