2D interpolation was only added in GSL 2. If you need to use an older version of GSL like 1.16, you can use the interp2d library which includes the same code from https://github.com/diazona/interp2d (disclaimer: I am the author).
:) David On Thu, Dec 15, 2016, 10:03 AM jody <[email protected]> wrote: Hi I don't know if this is a bug. I have installed gsl 1.16, but apparently neither gsl_interp2d.h and gsl_spline2d.h do exist. I tried it it both with 'emerge sci-libs/gsl' and by downloading the tar-ball from http://www.gnu.org/software/gsl/ Has 2d-interpolation been dropped from gsl, or has it not been included in the tarball? Jody
