Am 17.01.2019 um 14:07 schrieb kendfrey:
> I'm trying to approximate a quarter-circle with a cubic spline, but I'm not> getting the results I expected.
Buyer beware: There are different breeds of cubic (i.e 3rd order
polynomial) splines, which differ in how the control points are
translated into polynom coefficients. The article is about cubic splines
of the Bezier type, while POV-Ray's "cubic" splines are close relatives
of the Catmull-Rom type.
