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Nasir al-Din Tusi was born in the city of Tus in medieval Khorasan (northeastern Iran) in the year 1201 and began his studies at an early age. In Hamadan and Tus, he studied the Quran, Hadith, Ja'fari jurisprudence, logic, philosophy, mathematics, medicine, and astronomy. [18]
The Tusi couple (also known as Tusi's mechanism [1] [2] [3]) is a mathematical device in which a small circle rotates inside a larger circle twice the diameter of the smaller circle. Rotations of the circles cause a point on the circumference of the smaller circle to oscillate back and forth in linear motion along a diameter of the larger circle.
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 ...
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]
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 ...
Nur ad-Din al-Bitruji (d. 1204) Sharaf al-Dīn al-Tūsī (d. 1213) Mu'ayyad al-Din al-'Urdi (d. 1266) Nasir al-Din Tusi (d. 1274) Shams al-Dīn al-Samarqandī (d. 1310) Qutb al-Din al-Shirazi (d. 1311) Sadr al-Shari'a al-Asghar (d. 1346) Ibn al-Shatir (d. 1375) Shams al-Dīn Abū Abd Allāh al-Khalīlī (d. 1380) Jamshīd al-Kāshī (d. 1429 ...
In the 13th century, Nasir al-Din Tusi (Nasireddin) made advances in spherical trigonometry. He also wrote influential work on Euclid's parallel postulate. In the 15th century, Ghiyath al-Kashi computed the value of π to the 16th decimal place.
Nasir al-Din al-Tusi was Persian philosopher, mathematician, and theologian that was born into Shia family in Tus in 1201. [1] [2] He was of the Ismaili, and subsequently Twelver Shia Islamic belief. [3] Nasir al-Din has about 150 works in different languages (Persian, Arabic). [4] [5]