Acronym gybef, J26
Name gyrobifastegium
 
 © ©
Vertex figure [3,42], [(3,4)2]
Lace city
in approx. ASCII-art
  x  
     
x   x
     
o   o
General of army (is itself convex)
Colonel of regiment (is itself locally convex)
Dihedral angles
  • between {3} and {4} (at join):   150°
  • between {3} and {4} (of trip):   90°
  • between {4} and {4}:   60°
Confer
uniform relative:
trip  
general polytopal classes:
Johnson solids   bistratic lace towers  
External
links
wikipedia   mathworld   quickfur  

Incidence matrix according to Dynkin symbol

xxo oxx&#xt   → both heights = sqrt(3)/2 = 0.866025
(line || pseudo {4} || perp line)

o.. o..    | 2 * * | 1 2 0 0 0 0 | 2 1 0 0
.o. .o.    | * 4 * | 0 1 1 1 1 0 | 1 1 1 1
..o ..o    | * * 2 | 0 0 0 0 2 1 | 0 0 1 2
-----------+-------+-------------+--------
x.. ...    | 2 0 0 | 1 * * * * * | 2 0 0 0
oo. oo.&#x | 1 1 0 | * 4 * * * * | 1 1 0 0
.x. ...    | 0 2 0 | * * 2 * * * | 1 0 1 0
... .x.    | 0 2 0 | * * * 2 * * | 0 1 0 1
.oo .oo&#x | 0 1 1 | * * * * 4 * | 0 0 1 1
... ..x    | 0 0 2 | * * * * * 1 | 0 0 0 2
-----------+-------+-------------+--------
xx. ...&#x | 2 2 0 | 1 2 1 0 0 0 | 2 * * *
... ox.&#x | 1 2 0 | 0 2 0 1 0 0 | * 2 * *
.xo ...&#x | 0 2 1 | 0 0 1 0 2 0 | * * 2 *
... .xx&#x | 0 2 2 | 0 0 0 1 2 1 | * * * 2
or
o.. o..    & | 4 * | 1 2 0 | 2 1
.o. .o.      | * 4 | 0 2 2 | 2 2
-------------+-----+-------+----
x.. ...    & | 2 0 | 2 * * | 2 0
oo. oo.&#x & | 1 1 | * 8 * | 1 1
.x. ...    & | 0 2 | * * 4 | 1 1
-------------+-----+-------+----
xx. ...&#x & | 2 2 | 1 2 1 | 4 *
... ox.&#x & | 1 2 | 0 2 1 | * 4

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