Acronym ditdap
Name digon-triangle duoantiprism,
hemiated shiddip
 
 ©
Circumradius sqrt[A2/2+B2]
Confer
more general:
sns2sms   s2s2sns  
general polytopal classes:
isogonal  
External
links
polytopewiki

These isogonal polychora are obtained by hemiation of some semi-uniform shiddip variant with A-sized squares and B-sized hexagons. But because of lower degree of freedom the three resulting edge sizes A*sqrt(2), B*sqrt(3), sqrt(A2+B2) cannot be made all alike.

Special variants:


Incidence matrix according to Dynkin symbol

s2s2s3s

demi( . . . . )   | 12 | 1  4  2 |  6  6 1 | 2  4 2
------------------+----+---------+---------+-------
      s2s . .     |  2 | 6  *  * |  4  0 0 | 2  2 0  A*q
      s 2 s .   & |  2 | * 24  * |  2  2 0 | 1  2 1  sqrt(A2+B2)
sefa( . . s3s )   |  2 | *  * 12 |  0  2 1 | 0  1 2  B*h
------------------+----+---------+---------+-------
sefa( s2s2s . ) & |  3 | 1  2  0 | 24  * * | 1  1 0
sefa( . s2s3s ) & |  3 | 0  2  1 |  * 24 * | 0  1 1
      .   s3s     |  3 | 0  0  3 |  *  * 4 | 0  0 2
------------------+----+---------+---------+-------
      s2s2s .   & |  4 | 2  4  0 |  4  0 0 | 6  * *  2ap (red)
sefa( s2s2s3s )   |  4 | 1  4  1 |  2  2 0 | * 12 *  disphenoid (yellow)
      . s2s3s   & |  6 | 0  6  6 |  0  6 2 | *  * 4  3ap (blue)

starting figure: x x x3x

s4o2s3s

demi( . . . . )   | 12 |  1  4  2 | 1  6  6 | 2 2  4
------------------+----+----------+---------+-------
      s4o . .     |  2 |  6  *  * | 0  4  0 | 2 0  2  A*sqrt(2)
      s 2 s .   & |  2 |  * 24  * | 0  2  2 | 1 1  2  sqrt(A2+B2)
sefa( . . s3s )   |  2 |  *  * 12 | 1  0  2 | 0 2  1  B*x(2n)
------------------+----+----------+---------+-------
      .   s3s     |  3 |  0  0  3 | 4  *  * | 0 2  0
sefa( s4o2s . ) & |  3 |  1  2  0 | * 24  * | 1 0  1
sefa( s 2 s3s )   |  3 |  0  2  1 | *  * 24 | 0 1  1
------------------+----+----------+---------+-------
      s4o2s .   & |  4 |  2  4  0 | 0  4  0 | 6 *  *  2ap (red)
      s 2 s3s     |  6 |  0  6  6 | 2  0  6 | * 4  *  3ap (blue)
sefa( s4o2s3s )   |  4 |  1  4  1 | 0  2  2 | * * 12  disphenoid (yellow)

starting figure: x4o x3x

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