One that we’ve all probably seen many times, but have we noticed these subtle but important differences between the approximate and the exact constructions? I know I didn’t when I first started; I was just so happy that I’d created a beautiful geometric rosette!

I hope this helps us all have a keener eye when seeing and constructing patterns. I know there are at least two other methods that give the exact outcome, but this is the one I use most often.

To see the comparison in greater detail, and also see the examples of the pattern in situ, I highly recommend you watch this video    • محاضرات في الزخرفة العربية الهندسية (...  
Many thanks to Mohammed Aljanabi for illustrating it so fully and so clearly.

If you want to learn more about Islamic Geometry, visit www.samiramian.uk for:
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 MUSIC CREDIT : "Montmartre" by Jahzzar,
From the Free Music Archive used under CC BYSA 3.0