摘要
用变量代换求解具有重特征根的二阶常系数线性非齐次微分方程的方法 。
A method for solving the constant coefficient non homogenous quadratic linear differential equations with repeated characteristic roots by variable replace ment is given in this paper.Only two integral operations are needed.
出处
《河南农业大学学报》
CAS
CSCD
2001年第z1期86-87,共2页
Journal of Henan Agricultural University
关键词
特征方程
重特征根
变量代换
characteristic equation
repeated root
variable replacement