Question: Phase portrait in 3D

Hi everybody and thanks a lot for your help!

My problem is the following: I would like to draw a phase diagram for a system of 3 differential equations. So far this is not a problem but I would like to have the arrows of the vector field included in the diagram, like it is possible for systems of 2 diff. equations. Is that possible?

I use DEPlot3d, I suppose that is the correct tool?

Thanks and regards


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