某类二阶常系数非齐次线性微分方程特解的简捷求法

Simple Methods of special Solution to some Differential nonhomo geneous Equation of linear constant Coefficient

本文在文［１］的基础上，利用常数交易法及分部积分法获得了二阶常系数非齐次线性方程ｙ″＋ｐ１ｙ＇＋ｐ２ｙ＝Ｑ（ｘ），当满足条件时的特解公式。

This paper,on the basis of reference[1], by means of vaviation of constans and in tegration by parts,obtains differential nonhomogeneous equation of linear constant coefficient,