中文摘要：

矩阵条件数在数值代数领域有着广泛应用,所以矩阵条件数的估计就对研究各种矩阵问题有着重要意义。给出了一类特殊矩阵——严格对角占优M-矩阵条件数上界的几个新的估计式,通过算例验证了此方法的有效性。

英文摘要：

the condition number of a matrix is widely used in numerical algebra,so the estimation of matrix condition number on the study of various matrix problem has important significance.Estimation of several upper bound for the number of matrix is given--strictly diagonally dominant matrix M-condition new,verified the effectiveness of this method.