The solution's form for the ODE $$\frac{d\vec{r}(t)}{dt\;\;\;\;} = k\;\vec{r}(t)$$ can be generalized like in this diagram: https://upload.wikimedia.org/wikipedia/commons/3/35/Phase_plane_nodes.svg(adsbygoogle = window.adsbygoogle || []).push({});

Exist some program or some way of adjust some program of math for study the behavior of the solution through of the eigenvalues as parameter?

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# Simulation of the phase plane

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