Describe Cardinal Splines?

[mgeier]

Cardinal splines are Catmull-Rom splines with an additional tension parameter.

This is very similar to Kochanek-Bartels splines, which also have a tension parameter (plus continuity and bias).

So it might not be worth to create a separate notebook for this spline type.

Confusingly, old publications (like e.g. Schoenberg's papers and De Boor's book) use the term "cardinal" to describe "uniform" splines.