摘要
借助数理统计的结论 ,证明了三类矩阵为幂等的 ,同时求出了它们的秩 .
Three kinds of matrixes are idempotent according to some results in mathematical statistics,and their ranks are obtained at the some time.
出处
《武汉化工学院学报》
2003年第3期94-96,共3页
Journal of Wuhan Institute of Chemical Technology
关键词
幂等矩阵
秩
正态母体
idempotent matrix
rank
normal population
