Sefferine Madrasah, Fez, Morocco

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains five squares.
• Contains 16 regular two-pointed star polygons with vertex angle of 45°.
• Contains four regular 8-pointed star polygons with vertex angle of 90°.
• Contains two regular 8-pointed star polygons with vertex angle of 45°.
• Contains one regular 16-pointed star polygon with vertex angle of 45°.
• There are 16 non-regular reflective tiles (including 2 kites and one dart) and three reflective pairs.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 1691 polygons.

1. Photo by David Wade: MOR 0405 (Sefferine Madrasah, Fez, Morocco) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1271AD, 669AH)
2. Fig 10.7c of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}

• Wade photo MOR 0405

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