Useful Links:

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Investment:

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Iranian Sites:

 

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    http://www.mathpages.com/home/kmath448.htm

                More Omar on cubic equations ö here

                http://jwilson.coe.uga.edu/emt669/Student.Folders/Jones.June/omar/omarpaper.html

                Omar and Euclidās 5th postulate - here

                http://sunset.backbone.olemiss.edu/%7Erpagejr/euclid.html

                Edward FitzGeraldās translation of the Rubaiyat ö here

                http://www.rod.beavon.clara.net/khayyam.htm

                E. H. Whinfieldās translation of the Rubaiyat (500 quatrains!) as well as Fi tzGerald   ö here

                http://arabiannights.org/rubaiyat/index2.html

Rubaiyat of Omar Khayyam (literal translation, meaning, FitzGeraldās translation, German, Farsi) ö here

                http://www.promotionalguide.com/ok/poems/index.htm