Thanks for looking into this. But this is not the right abstraction layer to start with. We should handle this in theArrayMethod instead. And yes, thatwill make it awkward to use it for existing sin/cos implementations, because setting the flag there may not be straight-forward (something like this here may still be needed/useful).

But, I think we need to start at theArrayMethod integration. Also, as you can see just using the flag in the one iterator path is not sufficient, ufuncs have multiple paths and all of them need to ensure this.
(Including things likenp.add.reduce, etc.)
This shouldn't be extremely complicated, but there is quite a bit more ground to cover.

Thanks for the detailed explanation, I’ll go with your suggestion and look into handling this at theArrayMethod integration. I’ll reach out here if I get stuck or need clarification.