Acronym ...
Name x3f4o,
variation of truncated octahedron,
hull of siddo,
hull of passipsido
Circumradius sqrt[(5+2 sqrt(5))/2] = 2.176251
General of army (is itself convex)
Colonel of regiment (is itself locally convex)
Dihedral angles
  • between f4o and x3f:   arccos(-1/sqrt(3)) = 125.264390°
  • between x3f and x3f (at x):   arccos(-1/3) = 109.471221°
Confer
uniform variant:
toe  
variations:
a3b3c   x3x3u   a3b4c   x3u4o   x3w4o   u3x4o   (-x)3x4o  
inscribed compounds:
siddo   presipsido   passipsido   sirsido  

Incidence matrix according to Dynkin symbol

x3f4o

. . . | 24 |  1  2 | 2 1
------+----+-------+----
x . . |  2 | 12  * | 2 0
. f . |  2 |  * 24 | 1 1
------+----+-------+----
x3f . |  6 |  3  3 | 8 *
. f4o |  4 |  0  4 | * 6

x3f4/3o

. .   . | 24 |  1  2 | 2 1
--------+----+-------+----
x .   . |  2 | 12  * | 2 0
. f   . |  2 |  * 24 | 1 1
--------+----+-------+----
x3f   . |  6 |  3  3 | 8 *
. f4/3o |  4 |  0  4 | * 6

f3x3f

. . . | 24 |  1  1  1 | 1 1 1
------+----+----------+------
f . . |  2 | 12  *  * | 1 1 0
. x . |  2 |  * 12  * | 1 0 1
. . f |  2 |  *  * 12 | 0 1 1
------+----+----------+------
f3x . |  6 |  3  3  0 | 4 * *
f . f |  4 |  2  0  2 | * 6 *
. x3f |  6 |  0  3  3 | * * 4

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