Alhambra, window of the courtyard of the Patio de los Arrayanes

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 22.5°.
• Contains three regular two-pointed star polygons with vertex angle of 45°.
• Contains two regular 8-pointed star polygons with vertex angle of 90°.
• There are five non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has one finite interlace and one infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 400 polygons.

1. Photo by Nick Crossling (Alhambra, Patio de los Arrayanes, Spain. window of the courtyard of the Alberca) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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