Truncated order-8 triangular tiling
| Truncated order-8 triangular tiling | |
|---|---|
![]() Poincaré disk model of the hyperbolic plane  | |
| Type | Hyperbolic uniform tiling | 
| Vertex configuration | 8.6.6 | 
| Schläfli symbol | t{3,8} | 
| Wythoff symbol | 2 8 | 3 4 3 3 |  | 
| Coxeter diagram | |
| Symmetry group | [8,3], (*832) [(4,3,3)], (*433)  | 
| Dual | Octakis octagonal tiling | 
| Properties | Vertex-transitive | 
In geometry, the Truncated order-8 triangular tiling is a semiregular tiling of the hyperbolic plane. There are two hexagons and one octagon on each vertex. It has Schläfli symbol of t{3,8}.
Uniform colors
![]() The half symmetry [1+,8,3] = [(4,3,3)] can be shown with alternating two colors of hexagons  | 
![]() Dual tiling  | 
Symmetry
The dual of this tiling represents the fundamental domains of *443 symmetry. It only has one subgroup 443, replacing mirrors with gyration points.
This symmetry can be doubled to 832 symmetry by adding a bisecting mirror to the fundamental domain.
| Type | Reflectional | Rotational | 
|---|---|---|
| Index | 1 | 2 | 
| Diagram | ![]()  | 
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| Coxeter (orbifold)  | 
[(4,3,3)] =  (*433)  | 
[(4,3,3)]+ =  (433)  | 
Related tilings
From a Wythoff construction there are ten hyperbolic uniform tilings that can be based from the regular octagonal tiling.
It can also be generated from the (4 3 3) hyperbolic tilings:
| Symmetry: [(4,3,3)], (*433) | [(4,3,3)]+, (433) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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| h{8,3} t0{(4,3,3)} {(4,3,3)}  | 
r{8,3} t0,1{(4,3,3)}  | 
h{8,3} t1{(4,3,3)} {(3,3,4)}  | 
h2{8,3} t1,2{(4,3,3)}  | 
{3,8} t2{(4,3,3)} {(3,4,3)}  | 
h2{8,3} t0,2{(4,3,3)}  | 
t{3,8} t0,1,2{(4,3,3)} t{(4,3,3)}  | 
s{3,8} s{(4,3,3)}  | |||
| Uniform duals | ||||||||||
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| V(3.4)3 | V3.8.3.8 | V(3.4)3 | V3.6.4.6 | V(3.3)4 | V3.6.4.6 | V6.6.8 | V3.3.3.3.3.4 | |||
This hyperbolic tiling is topologically related as a part of sequence of uniform truncated polyhedra with vertex configurations (n.6.6), and [n,3] Coxeter group symmetry.
| Sym. *n42 [n,3]  | 
Spherical | Euclid. | Compact hyperb. | Parac. | Noncompact hyperbolic | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| *232 [2,3]  | 
*332 [3,3]  | 
*432 [4,3]  | 
*532 [5,3]  | 
*632 [6,3]  | 
*732 [7,3]  | 
*832 [8,3]...  | 
*∞32 [∞,3]  | 
[12i,3] | [9i,3] | [6i,3] | ||
| Truncated figures  | 
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| Config. | 2.6.6 | 3.6.6 | 4.6.6 | 5.6.6 | 6.6.6 | 7.6.6 | 8.6.6 | ∞.6.6 | 12i.6.6 | 9i.6.6 | 6i.6.6 | |
| n-kis figures  | 
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| Config. | V2.6.6 | V3.6.6 | V4.6.6 | V5.6.6 | V6.6.6 | V7.6.6 | V8.6.6 | V∞.6.6 | V12i.6.6 | V9i.6.6 | V6i.6.6 | |
See also
| Wikimedia Commons has media related to Uniform tiling 6-6-8. | 
- Triangular tiling
 - Order-3 octagonal tiling
 - Order-8 triangular tiling
 - Tilings of regular polygons
 - List of uniform tilings
 
References
- John H. Conway, Heidi Burgiel, Chaim Goodman-Strass, The Symmetries of Things 2008, ISBN 978-1-56881-220-5 (Chapter 19, The Hyperbolic Archimedean Tessellations)
 - "Chapter 10: Regular honeycombs in hyperbolic space". The Beauty of Geometry: Twelve Essays. Dover Publications. 1999. ISBN 0-486-40919-8. LCCN 99035678.
 
External links
- Weisstein, Eric W., "Hyperbolic tiling", MathWorld.
 - Weisstein, Eric W., "Poincaré hyperbolic disk", MathWorld.
 - Hyperbolic and Spherical Tiling Gallery
 - KaleidoTile 3: Educational software to create spherical, planar and hyperbolic tilings
 - Hyperbolic Planar Tessellations, Don Hatch
 
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