本文给出了上(下)三角形矩阵的一个求逆公式。
This article gives a Formula for finding inverse matrices of upper (down) triangular matrix.
这一名称来源于下三角结构线性系统写成状态空间表达式后，系统矩阵中所表现出的下三角形状；
The name of it comes from the lower-triangular form of system matrix in state-space equations when it is linear.
本文给出了双线性系统系数矩阵的李括号条件，在此条件下，可使双线性系统状态三角化。
Lie bracket conditions of matrices of bilinear control systems are given in the paper. Under these conditions the states of a bilinear system can be triangularized.
本文给出了双线性系统系数矩阵的李括号条件，在此条件下，可使双线性系统状态三角化。
Lie bracket conditions of matrices of bilinear control systems are given in the paper. Under these conditions the states of a bilinear system can be triangularized.
应用推荐