【数值分析】欧拉方法、梯形方法与预估-校正Euler公式

参考博客：

http://www.pynumerical.com/archives/32/

https://blog.csdn.net/qq_29831163/article/details/89703276?depth_1-utm_source=distribute.pc_relevant.none-task&utm_source=distribute.pc_relevant.none-task

https://blog.csdn.net/u013007900/article/details/45317927

https://blog.csdn.net/qq_35240640/article/details/89445826

https://wenku.baidu.com/view/d5d2763467ec102de2bd898a.html?sxts=1585100623950