| Acronym | shappy, 7/2-pyr |
| Name | small heptagrammic pyramid |
| Circumradius | 1/sqrt[4-1/sin2(2 π/7)] = 0.650389 |
| Vertex figures | [37/2], [3,3,7/2] |
| Colonel of regiment | (is itself locally convex) |
| Face vector | 8, 14, 8 |
| Confer |
|
Incidence matrix according to Dynkin symbol
ox7/2oo&#x → height = sqrt[1-1/(2 sin(2 pi/7))2] = 0.768771
(pt || {7/2})
o.7/2o. | 1 * | 7 0 | 7 0
.o7/2.o | * 7 | 1 2 | 2 1
-----------+-----+-----+----
oo7/2oo&#x | 1 1 | 7 * | 2 0
.x .. | 0 2 | * 7 | 1 1
-----------+-----+-----+----
ox ..&#x | 1 2 | 2 1 | 7 *
.x7/2.o | 0 7 | 0 7 | * 1
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