Source code for spline smoothing can be found in the examples from Carl de Boor's book A Practical Guide to Splines. The examples are in the Fortran programming...

2307/2004533, JSTOR 2004533, archived (PDF) from the original on 2012-10-25 de Boor, Carl (1990), "An empty exercise" (PDF), ACM SIGNUM Newsletter, 25 (2): 3–7...

Applied Sciences, as the editor-in-chief of Calcolo and of Numerische Mathematik, and as a member of the editorial staffs of numerous journals. He is a...