I recently asked:
because I noticed that at the edges, polynomial interpolation of equidistance points goes crazy. I want to avoid this and sample in a different way. Any way that is deterministic but avoid these explosions at the edges would be fantastic!
What is a good method to sample point as to avoid Runge's phenomenon In my particular case I am especially interested when only a few points are sampled, like 12, so answers addressing this point would be fantastic!