电脑知识与技术
電腦知識與技術
전뇌지식여기술
COMPUTER KNOWLEDGE AND TECHNOLOGY
2014年
17期
4137-4139,4163
,共4页
行对称矩阵%QR分解%广义逆
行對稱矩陣%QR分解%廣義逆
행대칭구진%QR분해%엄의역
row symmetric matrices%QR factorization%generalized inverse
对行对称矩阵的QR分解进行了研究,在此基础上给出了求行对称矩阵广义逆的快速求解公式,并给出了证明。将QR分解方法应用于该类行对称矩阵的广义逆的求解过程,既利用了QR分解保证足够的精度,又可大大降低求解一类具有该结构矩阵的广义逆的计算量和存储量。
對行對稱矩陣的QR分解進行瞭研究,在此基礎上給齣瞭求行對稱矩陣廣義逆的快速求解公式,併給齣瞭證明。將QR分解方法應用于該類行對稱矩陣的廣義逆的求解過程,既利用瞭QR分解保證足夠的精度,又可大大降低求解一類具有該結構矩陣的廣義逆的計算量和存儲量。
대행대칭구진적QR분해진행료연구,재차기출상급출료구행대칭구진엄의역적쾌속구해공식,병급출료증명。장QR분해방법응용우해류행대칭구진적엄의역적구해과정,기이용료QR분해보증족구적정도,우가대대강저구해일류구유해결구구진적엄의역적계산량화존저량。
The QR factorization of row symmetric matrices is studied,and on this basis an fast calculating formula for generalized inverse of row symmetric matrices is obtained and the proof of that formula is also given,all of which can dramatically reduce the amount of calculation and save the CPU time and memory for generalized inverse of row symmetric matrices,without loss of any numerical precision by the QR factorization.