DemoBS                  Demonstrate construction of ordinary B-splines
DemoKnots               Demonstrate ordinary cubic B-splines on three
                        types of knots
DemoNull                Demonstrate null space of a P-spline
DemoPBS                 Demonstrate construction of periodic B-splines
DiffCoef                Compute general differences of B-spline
                        coefficients
MakeGrid                Make a grid on the domain
NullD                   Find null space of a general difference matrix
PlaceKnots              Automatically place knots according to data
SparseD                 Build general difference matrices
SparseS                 Build derivative penalty matrix or its sparse
                        "root"
btSb                    Evaluate derivative penalty
pbsDesign               Build design matrix for periodic B-splines
