Muhammad ibn Musa al-Khwarizmi

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Muḥammad ibn Mūsā al-Khwārizmī
Born c. 780
Khwarezm, Uzbekistan
Died c. 850
Baghdad, Iraq
Other names Algorithmi
Employer House of Wisdom
Occupation mathematician, astronomer, geographer, historian
Notable works The Compendious Book on Calculation by Completion and Balancing (al-Jabr)
Book of the Description of the Earth
Astronomical tables of Siddhanta
Extraction of the Jewish Era
Book of History

Muḥammad ibn Mūsā al-Khwārizmī (محمد بن موسی خوارزمی) was a massively influential 9th century polymath from Islamic Persia who produced key works in mathematics, astronomy, geography, and history. Best known for his contributions to algebra (a field now eponymous with Khwarizmi's work that is known in Arabic al-Jabr) and to the concept of the algorithm (also eponymous with the latinization of Khwarizmi's name, Algorithmi), Khwarizmi also famously improved upon Ptolemy's Geography, studied the history of calendars, and advanced key developments in trigonomerty.


Islamic world

He was looked down upon by notable Islamic scholars who held him in contempt for his unorthodox religious views.

Ibn Taymiyyah wrote about Khwarizmi:

انه وإن كان علمه صحيحا إلا إن العلوم الشرعية مستغنية عنه وعن غيره

Even if his science is correct, regardless, the Islamic sciences are dispensed of him and his likes.

مجموع الفتاوى: 9/214 - 215

Western world