具有重特征根的一类二阶常系数线性非齐次微分方程的变量代换解法

Solving the Constant Coefficient Non-homogenous Quadratic Linear Differential Equations with Repeated Characteristic Roots by Variable Replacement

用变量代换求解具有重特征极的二阶常系数线性非齐次做分方程的方法，只是连续进行两次积分即可。

A method for sotw the constant coefficient non-twm quadratic lineredtherenhal eqwtions with reptaled chaIaCtetishc roots by variable replacementis given in this paper. Only two integral operations are needed, so it is as simpleas the ndhod of operator.