Ahmad ibn Ibrahim ibn Ali ibn Munim al-Abdari, was a mathematician, originally from Dénia in Andalusia, he lived and taught in Marrakesh, a major city of which location, where he was known as one of the best scholars in geometry and number theory
Marrakesh Marrakesh ( or ; Arabic: مراكش‎ ‎ "Murrākuš"; Berber: "Meṛṛakec"), also known by the French spelling Marrakech, is a major city of the Kingdom of Morocco. It is the fourth largest city in the country, after Casablanca, Fez and Tangier. It is the capital city of the mid-southwestern region of Marrakesh-Safi. Located to the north of the foothills of the snow-capped Atlas Mountains, Marrakesh is situated 580 km southwest of Tangier, 327 km southwest of the Moroccan capital of Rabat, 239 km south of Casablanca, and 246 km northeast of Agadir.
Abu al-Abbas Iranshahri Abu al-Abbas Iranshahri (Persian: حکیم ایرانشهری‎ ‎ ) was a 9th-century Persian philosopher, mathematician, natural scientist, historian of religion, astronomer and author. According to traditional sources, he is the first figure in the wider Muslim world to be associated with philosophy after the advent of Islam.