Through his work in the Nine Chapters, he could have been the first mathematician to discover and compute with negative numbers; definitely before Ancient Indian mathematician Brahmagupta (排23)started using negative numbers.
Among Liu's achievements are an emphasis on generalizations and proofs, incorporation of negative numbers into arithmetic, an early recognition of the notions of infinitesimals and limits, the Gaussian elimination method of solving simultaneous linear equations, calculations of solid volumes (including the use of Cavalieri's Principle), anticipation of Horner's Method, and a new method to calculate square roots. Like Archimedes, Liu discovered the formula for a circle's area; however he failed to calculate a sphere's volume, writing "Let us leave this problem to whoever can tell the truth."
刘徽奠基了中国古典数学。他的杰作《九章算术注》和《海岛算经》,是中国在数学史上最宝贵的遗产。他是中国最早明确主张用逻辑推理的方式来论证数学命题的人。刘徽的一生是为数学刻苦探求的一生。他虽然地位低下,但人格高尚。他不是沽名钓誉的庸人,而是学而不厌的伟人,给中华民族留下了宝贵的财富。 攀附权势的华罗庚差远了。 https://fabpedigree.com/james/mathmen.htm
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Through his work in the Nine Chapters, he could have been the first mathematician to discover and compute with negative numbers; definitely before Ancient Indian mathematician Brahmagupta (排23)started using negative numbers.
刘徽生活的魏晋时期,社会动乱但思想活跃。以后中国数学就走下坡路了。
Among Liu's achievements are an emphasis on generalizations and proofs, incorporation of negative numbers into arithmetic, an early recognition of the notions of infinitesimals and limits, the Gaussian elimination method of solving simultaneous linear equations, calculations of solid volumes (including the use of Cavalieri's Principle), anticipation of Horner's Method, and a new method to calculate square roots. Like Archimedes, Liu discovered the formula for a circle's area; however he failed to calculate a sphere's volume, writing "Let us leave this problem to whoever can tell the truth."
Gaussian elimination, Cavalieri's Principle, Horner's Method都是我讲科学计算方法课的内容。今天看来不是高大上的东西,但刘徽早在近1800年前就提出了这些算法,全都是代表当时最前沿的工作。更了不起的是,魏晋三国时他就已经有了负数,无限逼近,逻辑证明的理念。
https://academicinfluence.com/people?year-min=1950&discipline=mathematics
海外华裔占近70年top 100的3%。不晓得方舟子哪来的资料,网上找不到华罗庚进入任何前100的排名。84年中科院数学所出来的人就对华颇有微词,让我门外汉错愕不已,因为颠覆了国内形成的认知。
用这个网站,可以对理、工、医、社科,人文各领域、法、商等等、查高校、学者的学术影响排名。机器用大数据做的,参考一下,玩玩就好。别为各自立场打起来,伤了和气。