Acronym cogrin (old: gocrin)
Name celligreatorhombated penteract
(great cellirhombated penteract),
stericantitruncated penteract
Field of sections
 ©
Circumradius sqrt[41+16 sqrt(2)]/2 = 3.988340
Vertex figure
 ©    ©
Coordinates ((1+3 sqrt(2))/2, (1+2 sqrt(2))/2, (1+2 sqrt(2))/2, (1+sqrt(2))/2, 1/2)   & all permutations, all changes of sign
General of army (is itself convex)
Colonel of regiment (is itself locally convex – uniform polyteral members:
by cells: cope gidpith gircope grit ohope pittip prip todip
cogrin 8004010003280
srocgrin 0100108032080
& others)
Confer
related segmentotera:
gritta gidpith  
External
links
hedrondude   wikipedia  

As abstract polytope cogrin is isomorphic to quacgarn, thereby replacing octagons by octagrams, resp. op by stop and girco by quitco, resp. todip by tistodip, gircope by quitcope, and grit by gaqrit.


Incidence matrix according to Dynkin symbol

x3o3x3x4x

. . . . . | 1920 |    2    2   1   1 |   1   2   2   2   1   2   2   1 |   1   1   1   2   2   2   1   1  2 |  1  1  1  2  1
----------+------+-------------------+---------------------------------+------------------------------------+---------------
x . . . . |    2 | 1920    *   *   * |   1   1   1   1   0   0   0   0 |   1   1   1   1   1   1   0   0  0 |  1  1  1  1  0
. . x . . |    2 |    * 1920   *   * |   0   1   0   0   1   1   1   0 |   1   0   0   1   1   0   1   1  1 |  1  1  0  1  1
. . . x . |    2 |    *    * 960   * |   0   0   2   0   0   2   0   1 |   0   1   0   2   0   2   1   0  2 |  1  0  1  2  1
. . . . x |    2 |    *    *   * 960 |   0   0   0   2   0   0   2   1 |   0   0   1   0   2   2   0   1  2 |  0  1  1  2  1
----------+------+-------------------+---------------------------------+------------------------------------+---------------
x3o . . . |    3 |    3    0   0   0 | 640   *   *   *   *   *   *   * |   1   1   1   0   0   0   0   0  0 |  1  1  1  0  0
x . x . . |    4 |    2    2   0   0 |   * 960   *   *   *   *   *   * |   1   0   0   1   1   0   0   0  0 |  1  1  0  1  0
x . . x . |    4 |    2    0   2   0 |   *   * 960   *   *   *   *   * |   0   1   0   1   0   1   0   0  0 |  1  0  1  1  0
x . . . x |    4 |    2    0   0   2 |   *   *   * 960   *   *   *   * |   0   0   1   0   1   1   0   0  0 |  0  1  1  1  0
. o3x . . |    3 |    0    3   0   0 |   *   *   *   * 640   *   *   * |   1   0   0   0   0   0   1   1  0 |  1  1  0  0  1
. . x3x . |    6 |    0    3   3   0 |   *   *   *   *   * 640   *   * |   0   0   0   1   0   0   1   0  1 |  1  0  0  1  1
. . x . x |    4 |    0    2   0   2 |   *   *   *   *   *   * 960   * |   0   0   0   0   1   0   0   1  1 |  0  1  0  1  1
. . . x4x |    8 |    0    0   4   4 |   *   *   *   *   *   *   * 240 |   0   0   0   0   0   2   0   0  2 |  0  0  1  2  1
----------+------+-------------------+---------------------------------+------------------------------------+---------------
x3o3x . .    12 |   12   12   0   0 |   4   6   0   0   4   0   0   0 | 160   *   *   *   *   *   *   *  * |  1  1  0  0  0
x3o . x .     6 |    6    0   3   0 |   2   0   3   0   0   0   0   0 |   * 320   *   *   *   *   *   *  * |  1  0  1  0  0
x3o . . x     6 |    6    0   0   3 |   2   0   0   3   0   0   0   0 |   *   * 320   *   *   *   *   *  * |  0  1  1  0  0
x . x3x .    12 |    6    6   6   0 |   0   3   3   0   0   2   0   0 |   *   *   * 320   *   *   *   *  * |  1  0  0  1  0
x . x . x     8 |    4    4   0   4 |   0   2   0   2   0   0   2   0 |   *   *   *   * 480   *   *   *  * |  0  1  0  1  0
x . . x4x    16 |    8    0   8   8 |   0   0   4   4   0   0   0   2 |   *   *   *   *   * 240   *   *  * |  0  0  1  1  0
. o3x3x .    12 |    0   12   6   0 |   0   0   0   0   4   4   0   0 |   *   *   *   *   *   * 160   *  * |  1  0  0  0  1
. o3x . x     6 |    0    6   0   3 |   0   0   0   0   2   0   3   0 |   *   *   *   *   *   *   * 320  * |  0  1  0  0  1
. . x3x4x    48 |    0   24  24  24 |   0   0   0   0   0   8  12   6 |   *   *   *   *   *   *   *   * 80 |  0  0  0  1  1
----------+------+-------------------+---------------------------------+------------------------------------+---------------
x3o3x3x .    60 |   60   60  30   0 |  20  30  30   0  20  20   0   0 |   5  10   0  10   0   0   5   0  0 | 32  *  *  *  *
x3o3x . x    24 |   24   24   0  12 |   8  12   0  12   8   0  12   0 |   2   0   4   0   6   0   0   4  0 |  * 80  *  *  *
x3o . x4x    24 |   24    0  12  12 |   8   0  12  12   0   0   0   3 |   0   4   4   0   0   3   0   0  0 |  *  * 80  *  *
x . x3x4x    96 |   48   48  48  48 |   0  24  24  24   0  16  24  12 |   0   0   0   8  12   6   0   0  2 |  *  *  * 40  *
. o3x3x4x   192 |    0  192  96  96 |   0   0   0   0  64  64  96  24 |   0   0   0   0   0   0  16  32  8 |  *  *  *  * 10

snubbed forms: x3o3x3x4s

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