研究对角占优矩阵原位替换解算方法，包括矩阵行列式、矩阵方程未知数和矩阵逆阵的解算。
The calculation methods of diagonally dominant matrix in-situ replacement are researched, including the matrix determinant, the matrix equation unknown and the matrix inversion computation.
令发电机稳态运行所对应齐次方程的行列式为零，并使发电机的端电压为恒值，计算不同运行状况下机端电容值。
By equating the determinant of the steady-state homogeneous equation to zero, the terminal capacitances for maintaining constant voltage are computed.
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.
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