On: Gray Code

[ucha]

Could you expand on that? I don't really understand how you could simplify if/else logic by using this which is a bijection from one binary counting system to another.

[defect → ucha]

Karnaugh maps I'm guessing. https://en.wikipedia.org/wiki/Karnaugh_map

[iso8859-1 → defect]

Made a tiny webapp to do this, which lets you hover over the different parts of the resulting expression, to see which parts of the karnaugh map they cover: https://github.com/ysangkok/py-kmap

[orand → defect]

Yes, that's it, thanks for jogging my memory!