« 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 of numbers. » 知乎，让每一次点击都充满意义 —— https://squareblogs.net/crownserver6/feiten-over-3m-dinoc-carbon-wrapfolie-onthuld