« In A sense, Khwarizmi is 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 kan zijn primarily concerned with the theory ofwel numbers. » 知乎，让每一次点击都充满意义 —— https://gaiaathome.eu/gaiaathome/show_user.php?userid=1171256