Tossup

A work rejecting Aristotle’s influence on this discipline, titled Concerning the Supposed Dependence of [this discipline] upon Philosophy, was written by Ali Qushji. An Ilkhanate scholar based in Maragheh developed the “Tusi-couple” in a commentary on a work in this discipline. The triquetrum was one of many devices used in this discipline described in a treatise by Jamshid (-5[1])al-Kashi. A work on this discipline that introduced Indian numerals to the Arabic world was named after the region of Sindh and worked on by al-Khwarizmi. (10[1]-5[1])Islamic books on this discipline were often based on the “Handy Tables” expanding on the (10[1])Almagest; (10[1]-5[1])those books were known as zij (“zeej”), such as the Zij-i Sultani. For 10 points, Ulugh Beg set up a school for what discipline in Samarkand at an observatory? (10[1])■END■ (10[2])

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