Banu Musa (bänōˈ mōsäˈ) [key], family of Arab mathematicians and astronomers of the 9th cent. A.D. The name means "sons of Musa" and refers to the three brothers, Muhammad, Ahmad, and al-Hasan. They supervised the translation of Greek scientific works into Arabic and helped to found the Arabic school of mathematics. The most important work ascribed to them is the geometrical treatise Book on the Measurement of Plane and Spherical Figures.
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