Dear all, is there support for 1d cubic spline interpolation with not-a-knot boundary conditions? I could only find the interpolation types -gsl_interp_cspline -gsl_interp_cspline_periodic
I wanted to double-check that, maybe I missed some parts of the manual. My issue is that the interpolated function must be convex, but better strictly convex with positive 2nd derivatives. Best Simon
