解决离散正交多项式工具箱。离散正交多项式具有许多应用，如：在离散近似值 在ordinaty微分方程的解，特别是边值问题和初值问题。-This a toolbox for Diecrete Orthogonal Polynomials called the DOPbox. Discrete orthogonal polynomials have many applications, such as: in discrete approxi