常微分方程“一题多解”的启迪

The implications from “many solutions” to ordinary differential equation

阐述了变量代换法和积分因子法求解一阶非线方程和由积分因子求通积分的方法。

The method searching for solutions to first order non liner equation with variable substitution and integral gene, and the method searching for solutions to all the integral with integral gene were discussed and expounded in this paper.