In this paper,a real matrix is looked as a system of column vectors and the concept for the angle condition number of the system of column vectors is defined,also the relationship beteen the angle condition number of the system of column vectors and the spectral condition number of the matrix is investigated,and so some advonteges of angle condition number are pointed out.
将实矩阵视作列向量组,定义列向量组的角条件数,研究列向量组角条件数与矩阵谱条件数间的关系,指明运用列向量组角条件数的方便之处。
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