Acronym | sidtixhipy, pt || sidtixhi |
Name | (degenerate) sidtixhi pyramid |
Circumradius | ∞ i.e. flat in euclidean space |
Face vector | 121, 1320, 3600, 3120, 721 |
Confer |
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It either can be thought of as a degenerate 5D segmentotope with zero height, or as a 4D euclidean decomposition of the larger base into smaller bits.
As abstract polytope sidtixhipy is isomorphic to gidtixhipy, thereby replacing gike by ike, resp. gikepy by ikepy and sidtixhi by gidtixhi.
Incidence matrix according to Dynkin symbol
ox3oo3oo3oo5/2*b&#x → height = 0
(pt || sidtixhi)
o.3o.3o.3o.5/2*b | 1 * ♦ 120 0 | 1200 0 | 2400 0 0 | 600 120 0
.o3.o3.o3.o5/2*b | * 120 | 1 20 | 20 60 | 60 20 12 | 20 12 1
--------------------+-------+----------+-----------+--------------+----------
oo3oo3oo3oo5/2*b&#x | 1 1 | 120 * ♦ 20 0 | 60 0 0 | 20 12 0
.x .. .. .. | 0 2 | * 1200 | 1 6 | 6 3 3 | 3 3 1
--------------------+-------+----------+-----------+--------------+----------
ox .. .. .. &#x | 1 2 | 2 1 | 1200 * | 6 0 0 | 3 3 0
.x3.o .. .. | 0 3 | 0 3 | * 2400 | 1 1 1 | 1 1 1
--------------------+-------+----------+-----------+--------------+----------
ox3oo .. .. &#x ♦ 1 3 | 3 3 | 3 1 | 2400 * * | 1 1 0
.x3.o3.o .. ♦ 0 4 | 0 6 | 0 4 | * 600 * | 1 0 1
.x3.o .. .o5/2*b ♦ 0 12 | 0 30 | 0 20 | * * 120 | 0 1 1
--------------------+-------+----------+-----------+--------------+----------
ox3oo3oo .. &#x ♦ 1 4 | 4 6 | 6 4 | 4 1 0 | 600 * *
ox3oo .. oo5/2*b&#x ♦ 1 12 | 12 30 | 30 20 | 20 0 1 | * 120 *
.x3.o3.o3.o5/2*b ♦ 0 120 | 0 1200 | 0 2400 | 0 600 120 | * * 1
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