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Abū Naṣr Manṣūr b. ʿIrāq
(2,425 words)

Abū Naṣr Manṣūr b. ʿIrāq was a famous Persian mathematician and astronomer of the 4th/10th and 5th/11th century and a member of either the Āl ʿIrāq or the ancient Khwārazm-Shāh dynasty.

Even though Abū Naṣr was quite well known both in his time and later because of his mathematical work, biographers and historians rarely mentioned him. The little information available on him is based on the scattered and often contradictory reports that Niẓāmī ʿArūḍī, al-Subkī and Abū Rayḥān al-Bīrūnī give about him i…

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Sajjadi, Sadeq and Rahimi, Simin, “Abū Naṣr Manṣūr b. ʿIrāq”, in: Encyclopaedia Islamica, Editors-in-Chief: Wilferd Madelung and, Farhad Daftary. Consulted online on 26 January 2020 <http://dx.doi.org/10.1163/1875-9831_isla_COM_0118>
First published online: 2008
First print edition: ISBN: 978-90-04-16860-2, 20080710, 978-90-04-17859-5, 20091123, 9789004191655, 20110912

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