Nine Chapters on Mathematics
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Nine Chapters on Mathematics
Nine Chapters on Mathematics - In NanSong Dynasty, Qinjiushao, came from Anyue county of Sichuan, wrote Nine Chapters on Mathematics, which was called the outstanding math work in Middle Ages. The theory of Same Surplus, famous “Dahanqiuyishu”, ranked world’s top level at that time; played an important role in neoteric math and modern electronic design, was called Chinese Surplus Theorem; and eatraction of positive and negative is taught in course of mathematics in schools all over the world even now. 
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