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These are questions asked by albivald

We have three vectors: position, velocity and accelleration

Then we calculate three unit vector of osculating plane and the center of curvature . Can you help me in creating a smart plot to show the idea

Thank's a lot and Regards


Hello everybody . I have a problem with plotting a trig function : arctan(x)

I would live to plot 

In the plot ,the angle jump from -pi/2(-1,57) to pi/2 (1,57)and for u-> there is an asymptot in delta=0

But instead this the asymptote that I would like to see is in delta= -3pi.

How can I remove the discontinuity of the arctan function and plot continuos negative angle?

Thank's and best regards

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