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讨论了无限元方法￣［１］与相同子结构串分析￣［２］的一致性，综合文［１］和［２］得到一种通用算法，依据文［３］尚可应用于ＬＱ控制问题，且提出一种直接求出转移矩阵的算法，具有简便和较高精度的优点．
The consistency between the finite element method [1] and the same substring analysis [2] is discussed. A general algorithm is obtained by combining [1] and [2]. According to [3], LQ control problem , And presents a direct algorithm to find the transfer matrix, with the advantages of simplicity and high accuracy.