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Abu Jafar Muhammad ibn Husayn Khazin (Persian: ابوجعفر خازن خراسانی; 900–971), also called Al-Khazin, was an Iranian [1] Muslim astronomer and mathematician from Khorasan. He worked on both astronomy and number theory .
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Kitāb al-shakl al-mudawwar al-mustaṭīl ("The Book of the Elongated Circular Figure"), [32] [33] a mathematical treatise by al-Hasan—and the only one that is attributed to him— now lost. [ 1 ] [ 26 ] It contained a description of a procedure used to draw an ellipse using a length of string, a technique that is now known as the "gardener ...
The balance al-Khazini built for Sanjar's treasury was modeled after the balance al-Asfizari, who was a generation older than al-Khazini, built. [7] Sanjar's treasurer out of fear destroyed al-Asfizari's balance; he was filled with grief when he heard the news. [7] Al-Khazini called his balance "combined balance" to show honor towards Al ...
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Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more