Matlab gibbs handles more derivative combinations

[efiring]

The current Matlab code handles the following (ns, nt, np) argument sets to the gibbs function, that are not included in GSW-C:
030, 021, 111, 201, 120, 210, 102, 012.
Evidently these are not use in any of the other functions included in GSW-C.
Is there any point in adding them?

[ocefpaf]

Is there any point in adding them?

Asking here will only reach a subset of the users. IMO, no. But I don't have any application for those. Is there a TEOS-10 mailing list that we could ask this? Or maybe @PaulMBarker could give us some insight on what Matlab users are doing with those?

[efiring]

The terms that are included in the Matlab but not the Fortran or C are the 3rd order derivatives. In the Matlab they date back to at least March, 2017. I'm sure @PaulMBarker will be able to provide the background as to why they are there, and guidance as to whether we should add them.

[PaulMBarker]

Some of programmes are codes I wrote for myself, but have shared them through the toolbox. Also some took a huge amount of work and it seemed a shame to ignore or scrap them.
I would suggest it would be more beneficial to the community to focus om adding more programmes that use or are based on the 76 term polynomial.
But having said that, I am happy to see any programme translated from Matlab to C, as they may will be useful to some oceanographers and lead to advancements in the field.