Being able to document the exact algorithms used to solve a problem is sort of a ‘Holy Grail’ in programming. Most programmers aren’t afforded the time to document to that level. This would require refining the code down to a single cohesive story that describes the functionality of the implementation. It’s great when you can spend the time on it, but the problem is that the code is actually “working” long before that point. Most employers want to stop paying for code after it starts working.