Acronym squippia squacu, K-4.109 Name square pyramid atop square cupola Segmentochoron display Circumradius sqrt[2+sqrt(2)] = 1.847759 General of army (is itself convex) Lace cityin approx. ASCII-art ``` o4o o4x x4o x4x ``` Colonel of regiment (is itself locally convex) Dihedral angles at {4} between trip and trip:   arccos(-sqrt[8/9]) = 160.528779° at {3} between squippy and trip:   150° at {8} between squacu and squacu:   135° at {4} between squacu and squippy:   45° at {4} between squacu and trip:   arccos(sqrt[2/3]) = 35.264390° at {3} between squacu and trip:   30° Confer uniform relative: spic   related segmentochora: octasirco   squippy || escu   {4} || op   general polytopal classes: segmentochora

Incidence matrix according to Dynkin symbol

```oxxo4xxoo&#xr   → all heights = 1/sqrt(2) = 0.707107
(squacu || squippy   → height = 1/2)

o...4o...     |  4  *  *  *  |  2  0  0  0  2  1  0  0  |  1  0  0  1  0  2  0  0  2  2  |  1  0  0  1  1  2
.o..4.o..     |  *  8  *  *  |  0  1  1  0  1  0  1  0  |  0  1  0  1  1  1  1  0  0  1  |  1  1  0  0  1  1
..o.4..o.     |  *  *  4  *  |  0  0  0  2  0  0  2  1  |  0  0  1  0  1  0  2  2  0  2  |  0  1  1  0  2  1
...o4...o     |  *  *  *  1  |  0  0  0  0  0  4  0  4  |  0  0  0  0  0  0  0  4  4  8  |  0  0  1  1  4  4
--------------+--------------+--------------------------+--------------------------------+------------------
.... x...     |  2  0  0  0  |  4  *  *  *  *  *  *  *  |  1  0  0  0  0  1  0  0  1  0  |  1  0  0  1  0  1
.... .x..     |  0  2  0  0  |  *  4  *  *  *  *  *  *  |  0  1  0  0  0  1  1  0  0  0  |  1  1  0  0  0  1
.x.. ....     |  0  2  0  0  |  *  *  4  *  *  *  *  *  |  0  1  0  1  1  0  0  0  0  0  |  1  1  0  0  1  0
..x. ....     |  0  0  2  0  |  *  *  *  4  *  *  *  *  |  0  0  1  0  1  0  0  1  0  0  |  0  1  1  0  1  0
oo..4oo..&#x  |  1  1  0  0  |  *  *  *  *  8  *  *  *  |  0  0  0  1  0  1  0  0  0  1  |  1  0  0  0  1  1
o..o4o..o&#x  |  1  0  0  1  |  *  *  *  *  *  4  *  *  |  0  0  0  0  0  0  0  0  2  2  |  0  0  0  1  1  2
.oo.4.oo.&#x  |  0  1  1  0  |  *  *  *  *  *  *  8  *  |  0  0  0  0  1  0  1  0  0  1  |  0  1  0  0  1  1
..oo4..oo&#x  |  0  0  1  1  |  *  *  *  *  *  *  *  4  |  0  0  0  0  0  0  0  2  0  2  |  0  0  1  0  2  1
--------------+--------------+--------------------------+--------------------------------+------------------
o...4x...     |  4  0  0  0  |  4  0  0  0  0  0  0  0  |  1  *  *  *  *  *  *  *  *  *  |  1  0  0  1  0  0
.x..4.x..     |  0  8  0  0  |  0  4  4  0  0  0  0  0  |  *  1  *  *  *  *  *  *  *  *  |  1  1  0  0  0  0
..x.4..o.     |  0  0  4  0  |  0  0  0  4  0  0  0  0  |  *  *  1  *  *  *  *  *  *  *  |  0  1  1  0  0  0
ox.. ....&#x  |  1  2  0  0  |  0  0  1  0  2  0  0  0  |  *  *  *  4  *  *  *  *  *  *  |  1  0  0  0  1  0
.xx. ....&#x  |  0  2  2  0  |  0  0  1  1  0  0  2  0  |  *  *  *  *  4  *  *  *  *  *  |  0  1  0  0  1  0
.... xx..&#x  |  2  2  0  0  |  1  1  0  0  2  0  0  0  |  *  *  *  *  *  4  *  *  *  *  |  1  0  0  0  0  1
.... .xo.&#x  |  0  2  1  0  |  0  1  0  0  0  0  2  0  |  *  *  *  *  *  *  4  *  *  *  |  0  1  0  0  0  1
..xo ....&#x  |  0  0  2  1  |  0  0  0  1  0  0  0  2  |  *  *  *  *  *  *  *  4  *  *  |  0  0  1  0  1  0
.... x..o&#x  |  2  0  0  1  |  1  0  0  0  0  2  0  0  |  *  *  *  *  *  *  *  *  4  *  |  0  0  0  1  0  1
oooo4oooo&#xr |  1  1  1  1  |  0  0  0  0  1  1  1  1  |  *  *  *  *  *  *  *  *  *  8  |  0  0  0  0  1  1
--------------+--------------+--------------------------+--------------------------------+------------------
ox..4xx..&#x  ♦  4  8  0  0  |  4  4  4  0  8  0  0  0  |  1  1  0  4  0  4  0  0  0  0  |  1  *  *  *  *  *
.xx.4.xo.&#x  ♦  0  8  4  0  |  0  4  4  4  0  0  8  0  |  0  1  1  0  4  0  4  0  0  0  |  *  1  *  *  *  *
..xo4..oo&#x  ♦  0  0  4  1  |  0  0  0  4  0  0  0  4  |  0  0  1  0  0  0  0  4  0  0  |  *  *  1  *  *  *
o..o4x..o&#x  ♦  4  0  0  1  |  4  0  0  0  0  4  0  0  |  1  0  0  0  0  0  0  0  4  0  |  *  *  *  1  *  *
oxxo ....&#xr ♦  1  2  2  1  |  0  0  1  1  2  1  2  2  |  0  0  0  1  1  0  0  1  0  2  |  *  *  *  *  4  *
.... xxoo&#xr ♦  2  2  1  1  |  1  1  0  0  2  2  2  1  |  0  0  0  0  0  1  1  0  1  2  |  *  *  *  *  *  4
```