Ancient tiling from Portugal
data6/I94
(Click on image for high-quality PDF version)
Geometry
- The symmetry group of the tiling is *442 (p4m).
- All the internal angles of the constituent polygons are a multiple of 45°.
- Contains two squares.
- There is one non-regular reflective tile.
- The tiling does not satisfy the two-colour condition.
- The tiling is edge-to-edge.
- As drawn, contains about 90 polygons.
References
Publications referenced:
- Figure 9, bottom left, page 7 (Portugal) of B GrÃ¼nbaum and G C Shephard. Tilings and Patterns, W H Freeman, 1987. ISBN 071671193. [gands] {Most important work in this area.}(15th century AD)
Photo?
v53