I think this falls under Trig, but maybe its something else.
I start at (0,0), then i am given 4 points, say, (2,0) (0,1.5) (-3,0) (0,-2) I plot a point at each of those. Then i need to draw a closed curve that intersects each point. The curve should have a bezier interpolation at each vertex.
I have written code to do this, but it also uses a closed source library to make the curve and I need to explain this mathematically and implement it myself so i can pick any point along the curve.
Thanks for any help