barbagroup
lessons: actually use allocated buffers in Step12 lesson
the variables pn, un, vn, b... are always re-initialized or reassigned within the main iteration loop or inside functions, and are not shared or referenced elsewhere in a way that would require maintaining their identity
replacing direct assignments with slice assignments is not necessary here
I agree that this is not necessary to maintain correctness, but it can improve performance and memory usage in some cases by avoiding unnecessary allocation and reusing allocated slices.
I agree that this is not necessary to maintain correctness, but it can improve performance and memory usage in some cases by avoiding unnecessary allocation and reusing allocated slices.
I think that I know where you are coming from, but the current patch won't result in what you try to achieve. I left a couple comments with some suggestions, hope it helps.