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在我国的史书里没有载过刘徽的传记,只在晋书律历志里有“魏陈留王景元四年(公元263年)刘徽注九章”的话,可见刘徽是三国时候的人。他是不是数学专门家,有没有职位,都不明瞭。但因史书未载,设想没有做过高官显爵,也许是劳动人民中的一位大数学家。刘徽除在“九章算术”书中作注解外,又首创“割圆术”,利用勾股来求圆周率的近似值;造“重差术”,推广陈子测日高的方法,用来测量山高、谷深、河广,在数学上的贡献是极大的。
There is no biography of Liu Hui written in the history books of our country. Only in the book of Jin Shili’s history, there was “Wei Chenliu Wang Jingyuan (AD 263) and Liu Huihui’s 9 Chapters”. It can be seen that Liu Hui was a person of the Three Kingdoms Period. . Whether he is a mathematics professional or not, there is no position, and it is not clear. However, because history books are not included, it is not conceived to be a high official, but perhaps a major mathematician among working people. In addition to annotating in the “Nine Chapters of Arithmetic” book, Liu Hui first created the “cutting circle technique” and used the Pythagoreanism to determine the approximate value of the pi; he created the “heavy difference technique” and promoted Chen Zi’s method of measuring the height of the sun. Measuring the height of mountains, valleys, and rivers and rivers, the contribution to mathematics is enormous.