We think advanced mathematics is difficult to learn, mainly because mathematics in junior high school and senior high school are basically decoupled, and many ideas are different, which makes it difficult for us to accept. If you can calm down and give up the perspective of thinking before, you may be able to master it faster. Unfortunately, there is no quick solution to the subject of advanced mathematics, but there are certain rules to follow. First of all, we must master the basic theorems and formulas, because this is the basis of everything; Then the examples in the textbook are deduced and answered, and there are not many perfect ones. These examples have condensed a lot of essence, and many topics in the postgraduate entrance examination have evolved from here; Finally, consolidate and practice your hands with after-class questions. In the long run, your high score in math will definitely improve steadily.