I've recently finished a book on the J programming language (Learning J) and summarised what I read in what turned out to be a rather useful (at least to me) ch

I've recently finished a book on the J programming language (Learning J) and summarised what I read in what turned out to be a rather useful (at least to me) cheat sheet. Other similar content I found was not very "ctrl+f"-able, this one is. Perhaps someone else will find it useful as well.