Tolong jelaskan mengenai Ulugh Beg dari Matematik pada zaman pertengahan Islam dalam bahasa melayu

Timurid mathematician Ulugh Beg (1393 or 1394 – 1449), also ruler of the Timurid Empire, produced tables of trigonometric functions as part of his studies of astronomy. His sine and tangent tables were correct to 8 decimal places of accuracy.