ODE45 for nonlinear problem
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kindly check the below code....
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回答(1 个)
darova
2020-6-14
- avoid global. YOu can make nested function in your case
function linear_vs_nonlinear
% variables
% code
function SD_L=linear(t,s)
% code
end
end
- you have 4 equations, but only 2 initial conditions
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/315606/image.png)
- some operators are forgotten (multiplier i think)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/315609/image.png)
6 个评论
darova
2020-6-29
How do you know that
? Usually
and
are uknowns if you have ODE.
and
should be given
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/323635/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/323638/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/323641/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/323644/image.png)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/323647/image.png)
另请参阅
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