Nasir al-Din al-Tusi نصیر الدین الطوسی
Nasir al-Din al-Tusi is often considered the creator of trigonometry as a mathematical discipline in its own right..
Full Name: Muhammad ibn Muhammad ibn al-Hasan al-Tusi.
Other Names: Nasir al-Din al-Tusi
Arabic: نصیر الدین الطوسی
Born: 1201 AD.
Died: 1274 AD.
Origin: Tus, Khurasan, Khwarazmid Empire.
Famous for: Architect, Philosopher, Physician, and Scientist.
Legacy: The main-belt asteroid 7058 Al-Ṭūsī, discovered by Henry E. Holt at Palomar Observatory in 1990, was named in his honor.
Contributions:
He developed a novel method for determining the conditions under which certain types of cubic equations would have two, one, or no solutions.
Sharaf al-Din invented a linear astrolabe, sometimes called the “Staff of Tusi”. While it was easier to construct and was known in al-Andalus.
Articles
https://iranicaonline.org/articles/tusi-nasir-al-din-bio
https://en.wikipedia.org/wiki/Nasir_al-Din_al-Tusi
https://www.britannica.com/biography/Nasir-al-Din-al-Tusi
https://mathshistory.st-andrews.ac.uk/Biographies/Al-Tusi_Nasir/
Books attributed to Nasir al-Din al-Tusi:
