Bou Inania Madrasah, Fez

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 18°.
• Contains 13 regular five-pointed star polygons with vertex angle of 36°.
• Contains four regular 10-pointed star polygons with vertex angle of 72°.
• Contains one regular 20-pointed star polygon with vertex angle of 36°.
• There are 6 non-regular reflective tiles (including 2 kites) and one reflective pair.
• The tiling satisfies the two-colour condition with straight cross-overs, but interlace counts not determined.
• The tiling is edge-to-edge.
• As drawn, contains about 2655 polygons.

1. From Tony Lee (Bou Inania Madrasah, Fez, Morocco. Window grill) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1355AD, 756AH)
2. Fig 12.13 of Brian Wichmann and David Wade. Islamic Design: a Mathematical Approach, Springer, 2017. ISBN 978-3-319-69. [ww] {}

• Large stars
• Tiling with three or more proper stars

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