Hacker News Reader

> But how to you systematically deduce the tail recursion version?

Thanks! If I understand correctly, you would use that method, while substituting tail recursion in place of the look. However, I feel there is a lot of magic in https://gist.github.com/tmoertel/5798134#file-gistfile1-py-L....

Yeah, deducing the incremental computation to work backwards can take some practice. I take completely different approach to explaining how to do it in https://blog.moertel.com/posts/2013-05-14-recursive-to-itera....