本文指出，在矩阵迭代法的迭代过程中，特征值近似值序列是单调收敛的，并给出计算实例。
This paper indicated that the sequence of approximate value of eigenvalue is monotone convergent in the iteration process of matrix iteration method. And also gave examples.
用该近似函数形成结构优化原问题的序列近似问题，再用约束变尺度法解近似问题。
The improved approximate expressions are proposed to create the sequential approximation problems which are solved with the constrained variable metric method.
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