Events with ODE45 to change output values

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David Demory 2020-4-7

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https://ww2.mathworks.cn/matlabcentral/answers/516104-events-with-ode45-to-change-output-values

评论： darova 2020-4-7

I am integrating an ode system describing number of individual dynamics. Unfortunatly I have values asymptotically close to 0 and <1 that is not realistic and it should be 0.

Do you know how to use the events function when the variables reach 1, then considere this variable = 0 but NOT stop the ode integration?

The idea would be to do the same than:

ballode

but with only one integration bu not with loops and integrating many times when you have reached the threashold ...

Many thanks,

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David Demory 2020-4-7

Thanks darova for your answer. However, ballode was just an exemple. In my case I want to replace by 0 a variable when it < 1 in the ode45 integration and not stoping the integration.