We've studied that the wide-sense elementary transformation of a matrix, and illustrated its application in determinant calculation, matrix inversion and the rank of a matrix.
我们试对矩阵的广义初等变换作简要阐述并举例说明其在行列式求值、矩阵求逆及矩阵秩的有关证明等方面的应用。
This paper elaborates several features of the sum of the cofactor of a determinant and provides the method to calculate the determinant of a Matrix by the sum of the cofactor of a determinant.
给出有关代数余子式之和的几个性质并予以证明，且给出利用代数余子式之和计算行列式的方法。
This paper elaborates several features of the sum of the cofactor of a determinant and provides the method to calculate the determinant of a Matrix by the sum of the cofactor of a determinant.
给出有关代数余子式之和的几个性质并予以证明，且给出利用代数余子式之和计算行列式的方法。
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