摘要
This present paper deals with the main methematical achievements of Dai Xu,a famous mathematician of the Qing Dynasty:Dai Shi Series Numbers, Dai Shi lterative Method,Kai Ji Duo Wei Jiu-Cheng-Fang Method and the Relationship between Exponents and Logarithms etc.,which have been ignored by former research workers.The paper also puts forward different understandings from the past research at the following points:the Artificial Logarithm, the Formula for Changing Base, the Binomial Theorem and so on.
