Hi Iryna, > I've tried to construct b-splines and evaluate them on the uniform knots. I > become always the same error on the margins of the interval, over which the > b-splines where constructed.
> // construct five uniform knots {0, 1, 2, 3, 4} > gsl_bspline_knots_uniform(0, 4, w); Are you mixing "knots" and "breakpoints"? That method constructs knots corresponding to uniform breakpoints on [0, 4]. The method name is a bit confusing and specifying a basis differs from what you might expect if you came from, say, Matlab. - Rhys P.S. The reference is at http://www.gnu.org/software/gsl/manual/html_node/Constructing-the-knots-vector.html. _______________________________________________ Help-gsl mailing list Help-gsl@gnu.org https://lists.gnu.org/mailman/listinfo/help-gsl