Al-Ḥajjāj ibn Yūsuf ibn Maṭar (786–833CE) was amathematician andtranslator.

Almost nothing is known about his life, except that he was active inBaghdad, then the capital of the ʿAbbāsid Empire.

He was the first author who translatedEuclid'sElements fromGreek intoArabic. His first translation was made forYaḥyā ibn Khālid, theVizier ofCaliphHārūn al-Rashīd. He made a second, improved, more concise translation for theCaliphal-Maʾmūn (813–833). Around 829, he translatedPtolemy'sAlmagest, which at that time had also been translated byHunayn Ibn Ishaq andSahl al-Ṭabarī.

At the beginning of the 12th centuryCE,Adelard of Bath translatedal-Ḥajjāj's version of Euclid'sElements intoLatin.

• Brentjes, Sonja (2007)."Ḥajjāj ibn Yūsuf ibn Maṭar". In Thomas Hockey; et al. (eds.).The Biographical Encyclopedia of Astronomers. New York: Springer. pp. 460–1.ISBN 978-0-387-31022-0. (PDF version)

This article about an Asian mathematician is astub. You can help Wikipedia byexpanding it.

• v
• t
• e

This article about a translator from Asia is astub. You can help Wikipedia byexpanding it.

• v
• t
• e

• Greek–Arabic translators
• Mathematicians from the Abbasid Caliphate
• 786 births
• 833 deaths
• 9th-century mathematicians
• 9th-century astronomers
• Asian mathematician stubs
• Asian translator stubs

• Articles with short description
• Short description matches Wikidata
• Wikipedia indefinitely move-protected pages
• All stub articles