1 gen 1250 anni - Nasir al-Sin al-Tusi
Descrizione:
The work of Nasir al-Din al-Tusi, Treatise on the Secrets of the Sector Figure, is the first treatment of trigonometry in its own right, as a complete subject apart from astronomy. He attempts to develop a form of non-Euclidean geometryAggiunto al nastro di tempo:
Data:
1 gen 1250 anni
Adesso
~ 775 years ago