解微分方程 数值解 解析解。

s=dsolve('D2x+3.0634*e-4*(Dx)^2+20833.33*x-12500=0','x(0)=0,Dx(0)=0')
大神们教教龙哥库塔法吧

 Accepted Answer

perac
perac on 25 Nov 2022

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微分方程的龙格库塔方法规律性虽然比较好,但是一般人是记不住的,楼主还是找书的好。一般来说高阶微分方程都可以化简为一阶微分方程组,你的是二阶的,化简其实是比较简单(但是引入的中间参数挺多,很烦人的),所以还是亲力亲为吧!原理简单,手续复杂,懒得下手。

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