"Inputs must be floats, namely single or double"
1 次查看(过去 30 天)
显示 更早的评论
system of equations is:
F = @(t, r, y) [y(1), y(2), y(3), f_integral]
And then calling the ode solver:
[t, y] = ode45(F, [0 5], [1 1 1]).
1 个评论
Torsten
2017-6-13
Please show the differential equation you are trying to solve in a mathematical notation.
From the question you deleted meanwhile, it was not clear what you were trying to solve (at least for me).
Best wishes
Torsten.
采纳的回答
Torsten
2017-6-13
function main
tspan=[0 5];
y0=[1; 1; 1; 0];
[t,y]=ode45(@fun,tspan,y0)
function dy=fun(t,y)
dy=zeros(4,1);
dy(1)=y(1);
dy(2)=y(2);
dy(3)=y(3);
funint=@(r)(y(3)^2+y(4)^2)*r;
dy(4)=integral(funint,-1,1);
Best wishes
Torsten.
1 个评论
Torsten
2017-6-13
r is just a formal integration variable - it's not needed in the parameter list for "fun".
Best wishes
Torsten.
更多回答(0 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!