Arab Astronomers The Arab astronomers, Al-Battani, Al-Biruni and Umar Al-Khayyam are modern reminders of Arab contributions to astronomy with Arabic named stars; Acrab, Aldebaran, Algedi, Algul, Altair,...
The Arabs developed the concept of irrational numbers, made algebra an exact science, founded analytical geometry, plane and spherical trigonometry, and incorporated into mathematics the dimension of time.