矩阵与数值分析：高斯法，高斯列主元法，G_S迭代，牛顿法，jacobi迭代法，G-S迭代法

，牛顿法求根，三次样条插值，多项式拟合，复化Simpson方法，复化梯形方法，n=3的Gauss_Lengendre公式，4阶Runge-Kutta法求解微分方程-Matrix and numerical analysis: Gauss method out PCA Gaussian law, G_S iteration, Newton' s method, jacobi iterative method, GS iterative method, Newton method for solving, cubic spline interpolation, polynomial fitting, complex method of Simpson, trapezoid method, n = 3 for Gauss_Lengendre formula, fourth-order Runge-Kutta method for solving differential equations