Performance of tables slower than built in?

[Ola Fosheim Grøstad]

On Saturday, 25 May 2019 at 12:51:20 UTC, NaN wrote:
> I used an evolutionary optimisation algorithm on the table all 
> at once. So you do a weighted sum of max deviation, and 1st and 
> 2nd order discontinuity at the joins. And minimise that across 
> the table as a whole. It seemed you could massively overweight 
> the discontinuities without really affecting the curve fitting 
> that much. So perfect joins only cost a little extra deviation 
> in the fit of the polynomial.

Wow, it is pretty cool that you managed to minimize 2nd order 
discontinuity like that! Is there a paper describing the 
optimisation algorithm you used?