Acronym gridtathi
Name great retroinverted ditetrahedronary trishecatonicosachoron
Cross sections
 ©
Circumradius sqrt(2) = 1.414214
General of army hi
Colonel of regiment dattady
Confer gefridit xethi  
External
links
hedrondude   WikiChoron  

As abstract polytope gridtathi is isomorphic to grad tathi, thereby interchanging the roles of pentagrams and pentagons, resp. replacing doe by gissid and sidtid by gidtid.


Incidence matrix according to Dynkin symbol

600 |   12 |    6   12   12   12 |   4   4  12
----+------+---------------------+------------
  2 | 3600 |    1    2    2    2 |   1   2   4
----+------+---------------------+------------
  3 |    3 | 1200    *    *    * |   0   2   0
  5 |    5 |    * 1440    *    * |   1   0   1 {5}
  5 |    5 |    *    * 1440    * |   0   1   1 {5/2}
  6 |    6 |    *    *    * 1200 |   0   0   2
----+------+---------------------+------------
 20 |   30 |    0   12    0    0 | 120   *   * doe
 20 |   60 |   20    0   12    0 |   * 120   * sidtid
 60 |  120 |    0   12   12   20 |   *   * 120 ided

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