[spacemanspiff01]

For what it's worth from limited testing, (one example) gpt3.5 does have enough knowledge to determine the why.

I was curious what was going on in a sine cosine lookup table and that was doing linear interpolation between the points.

Feeding it into chatgpt, added the appropriate comments for each step.

It was fairly obvious, but had taken me 10 minutes to track down and realize what was going on.