列向量组的角条件数  

Angle condition number for system of column vectors

作　　者：曾宪雯[1] 

机构地区：[1]中国工程物理研究院研究生部,四川绵阳621900

出　　处：《东北师大学报（自然科学版）》2009年第4期39-41,共3页Journal of Northeast Normal University(Natural Science Edition)

基　　金：中国工程物理研究院科学技术基金资助项目(20020656)

摘　　要：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.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 an gle 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.

关 键 词：列向量组 角条件数 初等变换 病态线性代数方程组 

分 类 号：O241.6[理学—计算数学]