Sorry if I sound exclusively negative about someone else's hard work – that is not the intention. I find people's obsession over memorizing mathematical symbols (part 2) really strange. If you understand what the concepts involved in a symbol mean, you won't have a problem recognizing the commonly used symbols. And if you don't understand what the concepts involved mean, then having memorized the symbol does you no g…
If it is about memorizing then yeah, I don't get it. If it is a handy reference for I found a weird symbol what does it mean, then I do. When I was 14, I found a 1960s era electrical engineering text book. Being rather nerdy I bought it and read most of it. The only problem was I didn't understand the math because it had this weird S symbol in it. I didn't know what it was called or what it was about so I couldn't even formulate the question to find out more.