用途：利用二分法快速求解非线性方程f(x) = 0；

用向量形式（普通存储格式）的Gauss-Seidel迭代解线性方程组Ax=b；Newton迭代法解非线性方程f(x) = 0；用分量形式的SOR迭代解线性方程组Ax=b；用向量（稀疏存储）形式的Gauss-Seidel迭代解线性方程组Ax=b

-Purposes: the use of dichotomy quickly solving nonlinear equations f (x) = 0　with vector form of (general storage format) of the Gauss-Seidel iterative solution of linear equations Ax = b　Newton iterative method for solution of nonlinear equations f (x) = 0　with weight forms of SOR iterative solution of linear equations Ax = b　with vector (sparse storage) form of the Gauss-Seidel iterative solution of linear equations Ax = b