Before & after reducing divisions from k to 1. White cells are caused by an excessive number of divide-by-zeros (some # of them are unavoidable afaik).

Numerical stability matters, folks.

https://octodon.social/media/BPKnibUKQOui06KMd10 https://octodon.social/media/2HfG5h6iBL6KtxArb5g