本文讨论了矩阵的对角化在线性循环数列通项公式中的应用。
This paper discusses applications of diagonalization of the matrix in the general formula of linear recurrent sequence.
采用埃夫琴晶胞推导了计算二维三角离子晶体的马德隆常数的通项公式。
By Evjen crystal cell, the calculation formula about Madelung constant for the two-dimensional trigonal ion crystal was deduced.
用完全初等的方法给出了梯形电阻网络等效电阻的通项公式，并对相关问题进行了讨论。
The general formula of the equivalent resistance of ladder type network are achieved with elementary method, and some relevant problems are discussed.
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