Roland Haas
Roland Haas
And it actually computes something sensible? Ie what does the `calc_copy` routine actually compute?
Ok, so `calc_copy` seems ok. `calc_deriv` if it does indeed get used to compute "an approximation to the cell center value of that cell" is not any better than just...
By "cell centered" what do you mean? CarpetX thinks of "\" as "an average over the cell", and _not_ "the value of a function \[eg the metric\] sampled at the...
Well, as long as you have checked that indeed `calc_derivs2` is a 2nd order accurate approximation of the value at the center of the the cell derivative of the continuous...
> When you say that CarpetX assume that `` is cell average, I believe you are talking about prolongation. But I believe we have prolongation operator which is not conserved...
hmm, I guess we currently cannot use these since CarpetX will pick the prolongation operator based on the centering. Still not quite sure what your cell centered derivatives act on?...