how to get higher order derivative in ODE function

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in a differential equation of this type
My'' = y' + y + a
where M is the mass matrix and a is a constant.
Using ODE solver and transforming the diff equation in the cauchy form, How can i get the solution for every step also for the y''?

Answers (1)

Mischa Kim
Mischa Kim on 26 Dec 2020
Hi Giacomo, when you solve the ODE this means you have solutions for y(t) and y'(t). You can then simply use the same equation from your ode function to compute y''.
Mischa Kim
Mischa Kim on 26 Dec 2020
I see. I did not see any reference to events function in your question. Please add your code and other essential information to your question above and we can try to help you figure things out.

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