Abu al-Fath Mahmud ibn Muhammad ibn Qasim ibn Fadl al-Isfahani was a
10th-century Persian mathematician. He flourished probably around 982
AD in Isfahan.
He gave a better Arabic
edition of the Conics of Apollonius and commented on the first books.
The Conics had been translated a century before by Hilal al-Himsi (books 1-4)
and Thabit ibn Qurra (books 5-7).
Abū
al-Faraj al-Iṣbahānī, in full Abū al-Faraj ʿAlī ibn al-Ḥusayn al-Qurashī
al-Iṣbahānī, also called al-Iṣfahānī, (born
897, Eṣfahān, Iran—died November 20, 967, Baghdad), literary scholar who
composed an encyclopaedic and fundamental work on Arabic song, composers,
poets, and musicians.
Abū al-Faraj was a descendant of Marwān II, the
last Umayyad caliph of Syria. Despite the enmity between
this family and the ʿAlids, he was a Shīʿite Muslim, upholding the rights of
the descendants of the Prophet Muhammad’s son-in-law ʿAlī to the caliphate. Abū
al-Faraj spent most of his life in Baghdad, where he enjoyed the patronage
of the Būyid amirs.
Kitāb
al-aghānī (“The Book of Songs”), his major work, contains songs, biographical
information, and much information concerning the life and customs of the early
Arabs and of the Muslim Arabs of the Umayyad and ʿAbbāsid periods.
Abū al-Faraj also wrote Maqātil al-Ṭālibīyīn wa-akhbaruhum (“The Slaying of the
Ṭālibīs”), comprising biographies of the
Shīʿite martyrs descended from ʿAlī and his father, Abū Ṭālib.
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Mathematician
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