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li yong dao shu ji suan zi ran shu fang mi he de yi zhong fang fa
Author(s): 
Pages: 84-87,71
Year: Issue:  3
Journal: Journal of Lingling Teachers College

Keyword:  方幂和导数待定系数;
Abstract: 从所周知,方幂和Sm(n)=sum from p=1 to n Pm可表成n的m+1次多项式,即有Sm(n)=sum from v=1 to n Pm=am0nm++am1nm+……+ammn.本又利用导数的方法、给出了确定系数am0,am1,…,amm的线性方程组,并进而给出了求前几个系数的公式,且证明了除前三个系数外,其余系数交错为0.
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