二阶常系数非齐次线性微分方程
second order linear differential equation with con
辅助常微分方程
additional ordinary differential equation
auxiliary equation
非驻定常微分方程
non-autonomous ordinary differential equation
非线性四阶常微分方程
nonlinear fourth order differential equation
非线性常微分方程
nonlinear order differential equations
nonlinear ordinary differential equation
nonlinear differential equation
非齐性常微分方程式
non-homogenous ordinary differential equation
非齐线性常微分方程
Nonhomogeneous linear ordinary differential equati