John Omotani

I don't have time to follow this up right now. Not sure why the CI would have missed (?) this either - it looks like there isn't a debug build...

You're going to have to put up with the BOUT++ coordinate system where the `y`-direction is parallel to the magnetic field. The `z`-direction is periodic (often the toroidal direction of...

> what was the significance of setting a vector as covariant vs. contravariant in terms of how it's handled by BOUT? Vector operations are done component-by-component. Some require one or...

Adding in case anyone is working on updating the documentation for `build_function`... It would be nice to expand the tutorial to explain what happens when the symbolic expression is a...

For the 'every option as a separate variable' scheme, we would need to make variable names with nested section names. netCDF allows underscore '_', period '.', plus '+', hyphen '-',...

Definitely agree there is an issue here. I think from a skim of your code here that the solution you implement is taking into account explicitly the positions of each...

@dschwoerer could you add a docstring explaining how the coefficients are calculated? I'd find that very helpful.

If you could sketch the derivation, with notation corresponding to the variables in the code, that would be great :1st_place_medal:

@jonycastagna - re https://github.com/boutproject/BOUT-dev/pull/2557#issuecomment-1196784933 does this help? Sorry I can't test myself right now, Marconi's refusing to download FFTW just now...

@jonycastagna If the `examples` subdirectory exists in your build directory and the CMake build completed, I don't know how you could get that error. Try deleting the build directory and...