Reza Sarhangi

Professor of Mathematics
Towson University
Towson, Maryland, USA

I am interested in Persian geometric art and its historical methods of construction, which I explore using the computer software Geometer's Sketchpad. I then create digital artworks from these geometric constructions primarily using the computer software PaintShopPro.

Calm on Tiles

Calm on Tiles

"Calm" is an artwork based on the “Modularity” concept for constructing patterns presented in an article by Sarhangi, R., S. Jablan, and R. Sazdanovic, Modularity in Medieval Persian Mosaics: Textual, Empirical, Analytical, and Theoretical Considerations, 2004 Bridges Proceedings. The artwork has been printed on tiles in a way that reminds us of the traditional Persian art of Haft Rang Kashi (seven color tile) for covering the surface of tiles, that are usually white and square shaped.

Dance of Stars II
heavy paper

Dance of Stars II is a decorated Great Stellated Dodecahedron, with Schläfli Symbol (5/2, 3), which has been patterned by the sâzeh module tiles, that are used in the majority of tiling that conforms to local fivefold symmetries. In an article that appeared in Science, the authors proposed the possibility of the use of a set of tiles, girih tiles, by the medieval craftsmen, for the composition of the underlying pattern. I used girih tiles and left the dashed outlines in the final tessellation. I also included rectilinear patterns that appear as additional small-brick pattern in the decagonal Gunbad-i Kabud tomb tower in Maragha, Iran.