【摘要】 用解一阶微分方程的常数变易法求解三阶常系数非齐次线性微分方程y′′′+py′′+qy′+sy=f(x),其优点是无需求特解,无须求基本解组,但可求通解,并且给出了一个通用的公式。更多还原

【Abstract】 Demonstrated in this paper is how the Constant-transform method, the typical method for solving differential equations of order one, is used in solving linear differential equations of order three. The merit is that the general solution can be found without seeking the typical solution and the basic solutions.更多还原