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Nasir al-Din al-Tusi was a well published author, writing on subjects of math, engineering, prose, and mysticism. Additionally, al-Tusi made several scientific advancements. In astronomy, al-Tusi created very accurate tables of planetary motion, an updated planetary model, and critiques of Ptolemaic astronomy.
The couple was first proposed by the 13th-century Persian astronomer and mathematician Nasir al-Din al-Tusi in his 1247 Tahrir al-Majisti (Commentary on the Almagest) as a solution for the latitudinal motion of the inferior planets [4] and later used extensively as a substitute for the equant introduced over a thousand years earlier in Ptolemy ...
The Tusi couple, a mathematical device invented by the Persian polymath Nasir al-Din Tusi to model the not perfectly circular motions of the planets. Science in the medieval Islamic world was the science developed and practised during the Islamic Golden Age under the Abbasid Caliphate of Baghdad, the Umayyads of Córdoba, the Abbadids of Seville, the Samanids, the Ziyarids and the Buyids in ...
After al-Tusi's death, his son Sadr al-Din succeeded him as director of the observatory. [2] During Uljaytu's reign, he appointed al-Tusi's other son, 'Asil al-Din as director. [2] [11] Scholars and students of mathematics, science, and astronomy came to the Maragheh Observatory from across the Islamic world and up to the eastern borders of ...
Sharaf al-Din's analysis of this equation was a notable development in Islamic mathematics, but his work was not pursued any further at that time, neither in the Muslim or European world. [19] Sharaf al-Din al-Tusi's "Treatise on equations" has been described by Roshdi Rashed as inaugurating the beginning of algebraic geometry. [20]
The spherical law of sines was discovered in the 10th century: it has been attributed variously to Abu-Mahmud Khojandi, Nasir al-Din al-Tusi and Abu Nasr Mansur, with Abu al-Wafa' Buzjani as a contributor. [16] Ibn Muʿādh al-Jayyānī's The book of unknown arcs of a sphere in the 11th century introduced the general law of sines. [23]
Al-Kindi, pioneer of environmental science [29] Zakariya al-Qazwini (1204-1283), geographer, cozmographer, physicist and mathematician. He explained the formation of mountains and collected the latitude, longitude and climate of 700 cities together with their time differences in a book.
Therefore, when al-Tusi complained that his astronomical tables were 250 years old, Hulagu gave permission to build a new observatory in a place of al-Tusi's choice (he chose Maragheh). A number of other prominent astronomers worked with al-Tusi there, including Muhyi al-Din al-Maghribi , Qutb al-Din al-Shirazi , Mu'ayyid al-Din al-'Urdi from ...