Hi,
There is one more thing to say is that, before reading the textbooks, I have never attend any class before, I just read it from zero.
And before trying on textbook, I had activated on regular books: Something relate to sub-conscious, how to work efficiently,NLP... Not 20 but about 8 books(I'd read some of them before). Compare to textbooks, they are superficial, easy to understand.
But for reading the textbooks, especially without any knowledge foundation, I even don't know how to ask a question to achieve my purpose. So that is the reason why it doesn't work.
So is it possible to read a hard book from zero?
One more thing: the textbooks are not mathematical stuffs, so I could understand everything from the books: I could normally read them without any additional introduction books(but slow).
LT
