由结构刚度矩阵行列式值为零的失稳条件导出结构失稳特征方程，从而精确地确定系统临界力值。
The precise critical force of a system can be deduced from the fact that the determinant of stiffness matrix of the system is equal to zero in the critical condition.
将行列式的值、矩阵的秩、齐次线性方程组的解等知识运用于向量组线性相关性判定，归纳出六种判定向量组线性相关性的方法。
The judging methods of the vectors group related dependence from determinant values, rank of matrix, solution of system of linear equations etc were studied.
这种分析方法在数值求解时只需计算低价次的传递矩阵和行列式值，因而可在PC机上进行。
This analysis method with numerical calculating only requires calculation of lower-order transfer matrix, so that, it can be made with microcomputer such as IBM-PC.
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