微分方程求解

IBB-EUT

我最近在做四阶龙格库塔算法的微分方程求解，求大神分享代码，感谢！
6 s& l5 V* g* E; h0 U, t

Uifhjvv

function yout = runge_kutta(fun,t,yin,varargin)
t_interval = t(2)-t(1);
k1 = t_interval*fun(t(1),yin,varargin);
k2 = t_interval*fun(t(1)+t_interval/2,yin+k1/2varargin);
2 y  @9 f8 W* Vk3 = t_interval*fun(t(1)+t_interval/2,yin+k2/2,varargin);
3 n% U& K8 x" a, B: Mk4 = t_interval*fun(t(1)+t_interval,yin+k3,varargin);
yout = yin+(k1+2*k2+2*k3+k4)/6;
end

IBB-EUT

Uifhjvv 发表于 2020-8-13 13:10
function yout = runge_kutta(fun,t,yin,varargin)
t_interval = t(2)-t(1);
) ]1 }2 ^7 y/ k- J. Q) vk1 = t_interval*fun(t(1),y ...

7 X0 t6 x# ~3 p谢谢大佬，我先去试试

shuddkk

楼上正解，，

cichishia