How to stop, reset the variables and restart an ODE solver?

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VR 2019-4-3

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https://ww2.mathworks.cn/matlabcentral/answers/454269-how-to-stop-reset-the-variables-and-restart-an-ode-solver

评论： VR 2019-4-18

I am trying to solve a system of equations in which I want to stop the solver at certain t-values, reset the value of depenedent variables, and restart the solver. Is there an example that I can look at and try to mimic?

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回答（1 个）

Walter Roberson 2019-4-3

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https://ww2.mathworks.cn/matlabcentral/answers/454269-how-to-stop-reset-the-variables-and-restart-an-ode-solver#answer_368967

Look at ballode and how it uses "events", and observe how it loops calls until the entire time is complete.

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Walter Roberson 2019-4-18

https://www.mathworks.com/help/matlab/math/ode-event-location.html

VR 2019-4-18

在 MATLAB Online 中打开

Thanks but I had already looked at it. I still don't understand how I can adapt the following line so that it stops integrating at t=6 and replace dydt(2) to be 40 (say) and starts integrating again.

value = y(1);

I tried to replace it with the following but it doesn't seem to work.

value = t-6;

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