Acronym sirpith
Name small rhombiprismated tesseractihexadecachoron
Cross sections
 ©
Circumradius sqrt[4+2 sqrt(2)] = 2.613126
Coordinates ((1+2 sqrt(2))/2, (1+sqrt(2))/2, (1+sqrt(2))/2, 1/2)   & all permutations, all changes of sign
Colonel of regiment proh
External
links
hedrondude   WikiChoron  

As abstract polychoron sirpith is isomorphic to girpith, thereby replacing octagons by octagrams, resp. op by stop and girco by quitco.


Incidence matrix

192 |  1   2   2 |  2  2  2  2 |  1  2 2
----+------------+-------------+--------
  2 | 96   *   * |  0  2  0  2 |  0  2 2
  2 |  * 192   * |  1  0  1  1 |  1  1 1
  2 |  *   * 192 |  1  1  1  0 |  1  1 1
----+------------+-------------+--------
  4 |  0   2   2 | 96  *  *  * |  1  1 0
  4 |  2   0   2 |  * 96  *  * |  0  1 1
  6 |  0   3   3 |  *  * 64  * |  1  0 1
  8 |  4   4   0 |  *  *  * 48 |  0  1 1  {8}
----+------------+-------------+--------
 12 |  0  12  12 |  6  0  4  0 | 16  * *  cho
 16 |  8   8   8 |  4  4  0  2 |  * 24 *  op
 48 | 24  24  24 |  0 12  8  6 |  *  * 8  girco

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