Moulay Ishmael Mosque, Fez, Morocco

• The symmetry group of the tiling is *442 (p4m).
• All the internal angles of the constituent polygons are a multiple of 45°.
• Contains one regular octagon.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• Contains one regular 8-pointed star polygon with vertex angle of 45°.
• There are 8 non-regular reflective tiles (including one kite and one dart).
• The tiling satisfies the interlace condition and has four finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 489 polygons.

1. Photo by David Wade: MOR 0606 (Moulay Ishmael Mosque, Fez, Morocco) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1437AD, 840AH)

• Wade photo MOR 0606

• Tiling whose tile angles are a multiple of 45° and whose lengths are p+q*sqrt(2).

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