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刘徽(生于公元250年左右),是中国数学史上一个非常伟大的数学家,在世界数学史上,也占有重要的地位.他的杰作《九章算术注》和《海岛算经》,是我国最宝贵的数学遗产.《九章算术》约成书于东汉之初,共有246个问题的解法.在许多方面:如解联立方程,分数四则运算,正负数运算,几何图形的体积面积计算等,都属于当时世界先进之列,但因解法比较原始,缺乏必要的证明,而刘徽则对此均作了补充证明.在这些证明中,显示了他在多方面的创造性的贡献.他是世界上最早提出十进小数概念的人,并用十进小数来表示无理数的立方根.在代数方面,他正确地提出了正负数的概念及其加减运算的法则;改进了线性方程组的解法.
Liu Hui (born around 250 AD) is a very great mathematician in the history of mathematics in China and holds an important place in the history of mathematics in the world. His masterpieces, The Chapter Nine Arithmetic Note and The Island Comprehension, are China’s most valuable mathematical heritage. “Nine chapters of arithmetic” about the beginning of the Eastern Han Dynasty, a total of 246 solutions .In many ways: such as the solution of simultaneous equations, fractional four arithmetic, positive and negative arithmetic, the geometric area of the volume Calculation and so on, all belong to the world’s most advanced columns of the time, but due to the relatively primitive solution and lack of necessary proofs, Liu Huizheng supplemented this with evidence of his creative contributions in various fields. He is the first person in the world to propose the concept of decimal decimal, and uses decimal to represent the cubic root of the irrational number.In the aspect of algebra, he correctly proposed the concept of positive and negative numbers and the law of addition and subtraction; and improved the linear equations Solution.