k = length(t) - 1
defined by the knot sequence in argument t each consist of polynomial
segments with the same order joined end-to-end over the successive gaps in the
knot sequence. This function computes the k coefficients of these polynomial
segments in the rows of the output matrix coeff, with each row corresponding
to a B-spline basis function that is positive over the interval spanned by the
values in t. The elements of the output vector index indicate where
in the sequence t we find the knots. Note that we assume
t[1] < t[k+1], i.e. t is not a sequence of the same knot.ppBspline(t)t and columns corresponding to the
terms 1, x, x^2, ... in the polynomial representation.t the knots are to be foundbsplineS