矩阵的各类实现包括矩阵的分解矩阵的求秩求逆等各类运算-Types of implementation of the matrix, including the requirements of the decomposition of the matrix, the matrix rank, inverse, and other types of computing

输入一个矩阵，可以求得该矩阵的逆矩阵，内附解释说明-Enter a matrix, you can obtain the inverse matrix, containing an explanation