Its value lies in its ability to simplify intractable differential equations (subject to particular Boundary conditions) by transforming the derivatives and Boundary conditions into terms of an algebraic equation that may easily be solved.

• 其值视简化为无多项式算法之微分方程式(符合特殊的边界条件)的能力而定,方法是把导数和边界条件变换为易解之代数方程式的项。