OverviewA scholar remembered for helping establish the observatory at Maragha.CategoryScholarPeriodc. 1201 – c. 1274 CE
Life and settingAl-Tusi worked through major political upheavals in thirteenth-century Persia and later helped establish the observatory at Maragha.Source: MacTutor History of Mathematics, University of St Andrews
Work and legacyHis writings span astronomy, logic, ethics and mathematics. The geometrical device known as the Tusi couple became important in later discussions of planetary models.Source: MacTutor History of Mathematics, University of St Andrews
SourcesOriginal concise biography based on the cited references. Historical reports, later devotional traditions and uncertain dates are distinguished where relevant.MacTutor History of Mathematics, University of St Andrews
