World’s First Book of Arithmetic Tasks

The world’s first textbook of arithmetic tasks was compiled by Armenian scientist, mathematician of 5th-6th cc. David the Invincible (Դավիթ Անհաղթ). A copy of this task book is now kept in the Matenadaran (Mesrop Mashtots Institute of Ancient Manuscripts) in Yerevan, Armenia. Biographical information about David is quite scanty. He was born approximately in mid-seventies …

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