matlab的追赶法，追赶法是适用于三对角矩阵的线性方程组求解的方法，并不适用于其他类型矩阵，及matlab的gauss求解方程方法，牛顿插值法，拉格朗日插值法。-matlab chasing method chasing method is applicable to the tridiagonal matrix method for solving linear equations, does not apply to other types of matrix and matlab gau