Tag: 1075

Google celebrates the 1075 anniversary of the birth of Abu al-Wafa Buzjana

Today’s doodle honors this man, an innovator whose contributions to science include one of the first known introductions to negative numbers, and the development of the first quadrant, a tool used by astronomers to examine the sky. His pioneering work in spherical trigonometry was hugely influential for both mathematics and astronomy…MORE:.google.com/doodlesAbu al-Wafa' al-Buzjani’s 1075th Birthday

More: Abū al-Wafāʾ, Muḥammad ibn Muḥammad ibn Yaḥyā ibn Ismāʿīl ibn al-ʿAbbās al-Būzjānī or Abū al-Wafā Būzhjānī (Persian:ابوالوفا بوزجانی or بوژگانی‎)…innovations in spherical trigonometry, and his work on arithmetics for businessmen contains the first instance of using negative numbers in a medieval Islamic text… more: en.wikipedia.org