Li Yongle series is highly recommended. If the foundation is poor, look at it from the foundation, clarify the basic concepts, learn traditional solutions, especially linear algebra, and take those questions every year, so it is easy to score. Finally, I will do several sets of Li Yongle's simulation questions. The difficulty is equivalent to the real question of the postgraduate entrance examination, and the answer is detailed, which is worth recommending. In short, start from the basics, don't blindly do problems, just do difficult problems, and have a high eye and a low hand! !

I mean Li Yongle series and Chen Wendeng, each with its own merits. Li Yongle attaches importance to foundation, while Chen Wendeng attaches importance to skills, which belongs to the promotion level. I feel very rewarding. The exam was expected to be 140, but in the end I was a little low. I feel that I have learned a lot! !