摘要
本文讨论了伴随矩阵的一些性质和一类特殊方阵的伴随矩阵，并用初等变换给出了伴随矩阵的一种新的求法，它大大简化了传统的方法。
In this paper, we discuss a series of characteristics of adjoint matrix and the adjoint matix of a special matrix, and give a new method to obtain the adjoint matrix with elementary matrices. The traditional method is reduced.
关键词
矩阵
伴随矩阵
秩
matrix, adjoint matrix, rank
