#Al-Buzjani
- Abul Vefa — The Latinized name of Abu al-Wafa al-Buzjani (Muhammad ibn Muhammad ibn Yahya ibn Ismail ibn al-Abbas al-Buzjani), a legendary Persian mathematician and astronomer who flourished in Baghdad during the Islamic Golden Age. He is considered one of the fathers of modern trigonometry, having introduced the secant and cosecant functions, perfected sine and tangent tables, and developed foundational trigonometric identities still used today in complex astronomical and geometric calculations.