« In A sense, Khwarizmi kan zijn more entitled to be called « the father of algebra » than Diophantus because Khwarizmi kan zijn the first to teach algebra in an elementary form and for its own sake, Diophantus is primarily concerned with the theory of numbers. » 知乎，让每一次点击都充满意义 —— https://www.netsdaily.com/users/dickensbarefo