It extends especially the condition of unreduced weak diagonally dominant matrix for the convergence of Jacobi, Gauss-Seidel, and SOR iteration methods. 特别是放宽了Jacobi,Gauss-Seidel和SOR迭代法收敛的不可约弱对角占优矩阵这一条件。
Newton Iterative Arithmetic of a Unreduced Symmetric Tridiagonal Matrix with Eigenvalues 不可约对称三对角矩阵特征值的Newton迭代算法