P. Costantini, ALGORITHM 770 - BVSPIS - A PACKAGE FOR COMPUTING BOUNDARY-VALUED SHAPE-PRESERVING INTERPOLATING SPLINES, ACM transactions on mathematical software, 23(2), 1997, pp. 252-254
This article describes a software package for computing interpolating
polynomial splines with arbitrary constraints on their shape and satis
fying separable or nonseparable boundary conditions.