inverse of a square matrix 方阵的逆矩阵 ; 方阵逆矩阵
permanent of a square matrix 方阵的永久性
Trace of a square matrix 对角元素和
centralizer of a square matrix 方阵的中心化子
determinant of a square matrix 正方矩阵的行列式
square root of a matrix 矩阵的平方根
For this to make sense, we need a must be a square matrix.
要让这个有意义，我们要使a是一个方阵。
It is difficult to design the closed loop gain shaping controller when the controlled plant is not a square matrix, because it is involved in the pseudo inverse of matrix.
在被控对象为非方阵的系统中，由于求解控制器时涉及到矩阵求伪逆问题，很大程度上增加了闭环增益成形算法的难度。
It's just something to remember: if you have a square matrix times a column vector, the product that makes sense is with the matrix on the left, and the vector on the right.
只要记住：如果你要用一个方阵，乘以一个列向量，当矩阵在左，向量在右的时候乘积才有意义。
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