This post is in addition to the earlier post.
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Decagonal quasicrystal geometry, first understood by Westerners in recent decades, appears in 15th-century Islamic tilings
Cambridge, Mass. – February 22, 2007 – Intricate decorative tilework found in medieval architecture across the Islamic world appears to exhibit advanced decagonal quasicrystal geometry — a concept discovered by Western mathematicians and physicists only in the 1970s and 1980s. If so, medieval Islamic application of this geometry would predate Western mastery by at least half a millennium.
Faculty of Arts and Sciences Harvard
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http://www.sciencenews.org/articles/20070224/mathtrek.asp
Ismailimail 
Its interesting to browse through your Web site and related links.
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I am looking for a tile pattern called ashlyn. can anybody help me
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Hey im doing a slide show for maths all about islamic arts and im looking for information about islamic arts i was lookin around then landid on this syt but there is no information for me soo if any body has any information they could help me with i would be very gratfull =D
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Hi Kimberley, This article from Ismaili Mail’s sister blog next door, Spirit and Life, has an article on Islamic Calligraphy and in one of my comments I list a series of articles that you may find of some help for your project:
http://spiritandlife.wordpress.com/2008/01/23/traces-of-the-calligrapher-islamic-calligraphy-in-practice/
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