Martin Roelfs

I agree that to implement the basis should be very straight forward. One of the things that was stopping me is that we have not yet found sources on how...

Yeah I agree that putting this check in the setter is probably a nicer solution. Another solution could be to initiate each object properly and not set it after the...

I like the idea for creating this, but I would rather choose a solution that stays closer to sympy to prevent problems in the future. I think the following object...

Yeah I had those same problems when trying to include indexed variables and parameters and back then I eventually found that a mixin was the only way of getting it...

You guys had stew or vol-au-vent today? I had a hamburger with spinach, Popeye would approve.

The callback is definitely the easiest way to do this since at least it is called only once per iteration, but it might also be scipy specific since other backends...

It will also get the [`OptimizeResult`](https://docs.scipy.org/doc/scipy/reference/generated/scipy.optimize.OptimizeResult.html#scipy.optimize.OptimizeResult) state, which contains a lot of additional info. Is there anything you really need the objective for?

Why do I continue to get upset about these kinds of inconsistencies? Oh well, I guess we will indeed also have to provide the objective to `FitStatus`. The extra evaluation...

I agree with all of the above. Depending on the minimizer this caching might indeed be useless. But I think decorating the objective only when `verbose=True` is not that strange...

I agree with you that the documentation is currently a bit lacking in outlining these things for people who want to contribute, so it's not unfair to ask. The link...