WZ FACTORIZATION OF A MATRIX AND ITS ERROR ANALYSIS
矩阵的WZ分解及其误差分析

In this paper, WZ factorization of a matrix is considered, which is introducedby D. J. Evans and A. Hadjidimos in 1]. A sufficient and necessary condition for this factorization without permutationsis deduced, and the rounding error is analysed with a pivot strategy.