What I don't see, however, is to ask a friend. Find someone who is familiar with the notation, if not the material, and ask questions. You'll likely get a more clear answer.
> What I don't see, however, is to ask a friend.
From https://news.ycombinator.com/item?id=18510564 :
> ... get a few examples, and ask some friends, colleagues, or on-line forums ...
What I don't see, however, is to ask a friend. Find someone who is familiar with the notation, if not the material, and ask questions. You'll likely get a more clear answer.