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.
Al-Samawal al-Maghribi Al-Samawʾal ibn Yaḥyā al-Maghribī (Arabic: السموأل بن يحيى المغربي‎ ‎ ; c. 1130 – c. 1180), commonly known as Samau'al al-Maghribi, was a Muslim mathematician, astronomer and physician. Born to a Jewish family, he concealed his conversion to Islam for many years in fear of offending his father, then openly embraced Islam in 1163 after he had a dream telling him to do so. His father was a Rabbi from Morocco.