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Lot Essay
Al-Hasan bin Muhamad bin al-Husayn al-Qumi al-Nishapuri was a mathematician and philosopher, originally from Qom but who resided in Nishapur. He wrote religious works, including a commentary on the Qur'an as well as scientific works such as a commentary on Tusi's treatise on the Almagest, Ta'bir al-tahrir (Al-Zerekly, Al-A'lam, Biographical Dictionary, Beirut, 2007, vol. 2, p.216). After moving to the Ilkhanid capital of Tabriz, he studied at the Ilkhanid observatory of Maragha, under Qutb al-Din Shirazi, himself a student of Nasir al-Din Tusi.
Other copies of this work are in Bombay, Istanbul, London, Mashhad, Najaf, Paris, Rampur, St. Petersburg, Tabriz and Tehran, see B.A. Rosenfeld & E. Ihsanoglu, Mathematicians, Astronomers & Other Scholars of Islamic Civilisations and their Works (7th-19th c.), Istanbul, 2003, p. 238, no.686. For more about Qutb-al-Din al-Shirazi (1236-1311),C. Brockelmann, GAL, II, 256, Suppl.II, 273.
Other copies of this work are in Bombay, Istanbul, London, Mashhad, Najaf, Paris, Rampur, St. Petersburg, Tabriz and Tehran, see B.A. Rosenfeld & E. Ihsanoglu, Mathematicians, Astronomers & Other Scholars of Islamic Civilisations and their Works (7th-19th c.), Istanbul, 2003, p. 238, no.686. For more about Qutb-al-Din al-Shirazi (1236-1311),C. Brockelmann, GAL, II, 256, Suppl.II, 273.