« In A sense, Khwarizmi kan zijn more entitled to be called « the father ofwel algebra » than Diophantus because Khwarizmi is the first to teach algebra in an elementary form and for its own sake, Diophantus kan zijn primarily concerned with the theory ofwel numbers. » La publicidad http://ezproxy.cityu.edu.hk/login?url=https://nl.wikipedia.org/wiki/Kwaliteit