二阶变系数线性微分方程
the various coefficient linear differential equati
second-order linear differential equation with var
二阶线性变系数微分方程
second order LDE with variable coefficients
二阶变系数齐次线性微分方程
second order homogeneous linear differential equation with variable coefficient
变系数线性微分方程
linear differential equation
变系数线性微分方程组
variable factor linear differential system of equa
二阶变系数微分方程
second order differential equation
线性变系数微分方程
differential equation of variable linear constant
三阶变系数微分方程
3rd order Linear Differential Equation with Variable Coefficients
常系数线性微分方程
linear equation with constant coefficients
constants coefficients linear differential equation
linear differential equation with constant coefficients
linear differential equation with constant coeffic
常系数线性微分方程组
system of linera differential equations with constant coefficient
二阶常系数线性微分方程
second-order linear differential equation with constant coefficient
second-order linear differential equation with con
non-homogeneous linear equation of constant coeffi
一阶常系数线性微分方程组
first order linear differential equations with con
二阶线性微分方程
second order linear differential equation
second order differential equation
second order linear differential equations
second order linera differential equation
linear differential equation
second order linear equation
second-order linear differential equation
非线性二阶微分方程
nonlinear second order differential equation
变系数微分方程
differential equation with variable coefficients
differential equation with varied coefficient
differential equation
differential equation with varying coefficient
变系数微分方程组
changeable coefficient differential equation group
变系数线性方程
LPD with variable coeffierents
非线性周期/变系数微分方程
nonlinear periodic ordinary differential equation system