Just wondering if its possible to use these functions in a wrangle in a sop context. So far I cannot get them to output anything, and am confused as to how they work. I'm curious as they might be helpful for me. Anyone ever use these in a sop context and if so could you explain what they do or provide an example?

nope, surface context is required for derivatives, as they only take derivatives with respect to screen space position.

Ok thank you