I would like to draw with the package
tikz a smooth curve (not closed) and I would like to draw the tangent vector at one of the endpoints.
I haven't had nice results so far.
I used the library
hobby to draw the curve but somehow I felt I didn't have much control.
I have mainly two problems:
Every curve I draw with
hobbyit's somehow too "round".
The second problem is that I have no idea how to draw a tangent point at a precise point (in my case the first or last point) of the curve. I toyed a bit with some code I found here, but with no luck. In that link the curve is drawn as an
arc, while I would like to have a more "generic" curve, and moreover I need an arrow, not a segment.
Any help or reference would be very much appreciated! I'm very new to
tikz. I used it a bit some years ago for my master thesis, but I haven't used since then.