Back ثيون الإسكندري Arabic ثيون الاسكندرانى ARZ Теон Александрийски Bulgarian Teó d'Alexandria (astrònom) Catalan Theón z Alexandrie Czech Theon von Alexandria German Θέων ο Αλεξανδρεύς Greek Teono de Aleksandrio Esperanto Teón de Alejandría Spanish Teon Alexandriakoa Basque
Theon of Alexandria (/ˌθiːən, -ɒn/; Ancient Greek: Θέων ὁ Ἀλεξανδρεύς; c. AD 335 – c. 405) was a Greek[1] scholar and mathematician who lived in Alexandria, Egypt. He edited and arranged Euclid's Elements and wrote commentaries on works by Euclid and Ptolemy. His daughter Hypatia also won fame as a mathematician.