A: aij, 1<= i,j<=n b: 1<=i<=n x0: intial guess, 1<=i<=n tol: tolerance N maximum number of iterations k: number count of iteration Xm(:,k): X in each k iteration-Jacobi s method: In numerical linear algebra, the

使用追赶法，在matlab环境下求解三对角方程组(Using chasing method to solve three diagonal equations in Matlab environment)