> I'm needing to obtain the cubic spline interpolation co-efficients at each > abscissa. Is there a way to do this with gsl?
I can't speak for the interpolation routines. The functionality is not there for the basis splines. It could be added, and would look exactly like PPPACK's bsplpp.f (see http://www.netlib.org/pppack/). A large portion of the basis spline code looks like PPPACK under the covers. > Ideally I would like an array containing an array of coefficients at each > point. I then need to plug these into a matrix solver as part of a > collocation solver. Will forming a mass matrix M_{i,j} by evaluating the j-th basis function at the collocation points x_i cover what you need? Sometimes collocation problems fall into this camp. If so, the existing evaluation routines would do what you want. - Rhys _______________________________________________ Help-gsl mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gsl
