bsc                     Basis matrix for B-spline of order 0 (step
                        function) and higher
bsp                     Calculate B-spline values from their
                        coefficients qw and knots xk
bspline                 bspline: build and use B-splines for
                        interpolation and regression.
bsppar                  Retrieve parameters of B-splines
dbsp                    Derivative of B-spline
diffn                   Finite differences
iknots                  Estimate internal knot positions equalizing
                        jumps in n-th derivative
par2bsp                 Convert parameters to B-spline function
smbsp                   Smoothing B-spline of order n >= 0
