Acronym | etrat |
Name | elongated triangular tiling |
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Vertex figure | [33,42] |
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As abstract polytope etrat is isomrphic to retrat, thereby replacing prograde squares by retrograde ones.
Incidence matrix according to Dynkin symbol
elong( x3o6o ) (N → ∞) 2N | 2 2 1 | 3 2 ---+---------+----- 2 | 2N * * | 2 0 2 | * 2N * | 1 1 2 | * * N | 0 2 ---+---------+----- 3 | 2 1 0 | 2N * 4 | 0 2 2 | * N
:xxoo:∞:ooxx:&##x (N → ∞) → heights alternatingly = sqrt(3)/2 = 0.866025 resp. = 1 o... ∞ o... | N * * * | 2 1 0 0 0 0 0 2 | 2 0 0 0 2 1 .o.. ∞ .o.. | * N * * | 0 1 2 2 0 0 0 0 | 2 2 1 0 0 0 ..o. ∞ ..o. | * * N * | 0 0 0 2 2 1 0 0 | 0 1 2 2 0 0 ...o ∞ ...o | * * * N | 0 0 0 0 0 1 2 2 | 0 0 0 2 1 2 -----------------+---------+-------------------+------------ x... .... | 2 0 0 0 | N * * * * * * * | 1 0 0 0 1 0 oo.. ∞ oo.. &#x | 1 1 0 0 | * N * * * * * * | 2 0 0 0 0 0 .x.. .... | 0 2 0 0 | * * N * * * * * | 1 1 0 0 0 0 .oo. ∞ .oo. &#x | 0 1 1 0 | * * * 2N * * * * | 0 1 1 0 0 0 .... ..x. | 0 0 2 0 | * * * * N * * * | 0 0 1 1 0 0 ..oo ∞ ..oo &#x | 0 0 1 1 | * * * * * N * * | 0 0 0 2 0 0 .... ...x | 0 0 0 2 | * * * * * * N * | 0 0 0 1 0 1 :o..o:∞:o..o:&#x | 1 0 0 1 | * * * * * * * 2N | 0 0 0 0 1 1 -----------------+---------+-------------------+------------ xx.. .... &#x | 2 2 0 0 | 1 2 1 0 0 0 0 0 | N * * * * * .xo. .... &#x | 0 2 1 0 | 0 0 1 2 0 0 0 0 | * N * * * * .... .ox. &#x | 0 1 2 0 | 0 0 0 2 1 0 0 0 | * * N * * * .... ..xx &#x | 0 0 2 2 | 0 0 0 0 1 2 1 0 | * * * N * * :x..o: :....:&#x | 2 0 0 1 | 1 0 0 0 0 0 0 2 | * * * * N * :....: :o..x:&#x | 1 0 0 2 | 0 0 0 0 0 0 1 2 | * * * * * N
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