I am trying to create a simple cubic spline from points (0,0) to (m,1) connecting the lines y=1 and x=0.
However, I am having trouble getting the spline to be tangential to the x=0 line at (0,0).
https://www.desmos.com/calculator/gbyugajoyi
I presume this means I can't provide the derivative of x=0 to get it to do what I want?
How can I fix this?
I tried using y = vx where "v" is an arbitrarily high constant instead of x=0, and it works, but only at very low "m" values. At higher "m", it switches the spline around to connect the wrong way.
https://www.desmos.com/calculator/ijyna1uwtf
Is that controllable or fixable either?