通过牛顿-SOR迭代法求解线性方程 不同的迭代因子有不同的迭代效率，从0至2迭代次数先减少后增加，在1.2附近迭代次数最少，而在0和2 附近次数最多。-Through the Newton-SOR iterative method for solving linear equations iterative different factors have different iteration efficiency, from 0-2 to reduce the number of itera

编写Gauss-Seidel迭代和SOR迭代的通用程序-Write Gauss-Seidel iteration and SOR iteration general program