On 6/19/20 6:13 AM, Yury Pakhomov wrote: > Hello All! > > gsl_spline_eval returns NaN values when x is out of range. > > Since GSL-1.15 this situation remains unresolved > http://git.savannah.gnu.org/cgit/gsl.git/tree/NEWS#n470 > > BW, Yuri > This is the documented behavior ((see gsl_interp_eval description).
It would be nice to add extrapolation, but it has not been done yet.
