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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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The most important of the works produced by the Banū Mūsā was the Kitāb maʻrifat masāḥat al-ashkāl al-basīṭah wa-al-kurīyah ("Book on the Measurement of Plane and Spherical Figures"), of which a commentary was made by the persian polymath Naṣīr al-Dīn al-Ṭūsī in the 13th century.
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 ...
A. Al-Abbas ibn al-Hasan al-Jarjara'i; Abd al-Aziz ibn Shu'ayb; Abd al-Rahman III; Abdallah al-Khazin; Abdallah ibn Abi al-Shawarib; Abdallah ibn al-Mu'tazz
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His edition was later updated by Ahmad ibn Abi Said al-Harawi (10th century). Later, Nasir al-Din al-Tusi (1201–1274) dismissed Al-Mahani and Al-Harawi's edition and wrote his own treatment of the Sphaerica, based on the works on Abu Nasr Mansur. Al-Tusi's edition became the most widely known edition of the Sphaerica in the Arabic-speaking world.