Mathematics is my most tragic subject. I found that I was not good at math since I was a pig, and the math in the college entrance examination was second. Two-year postgraduate entrance examination mathematics second. I got a wonderful score of 60 points in the exam last year, which surprised me. This year 1 17 barely reached the scheduled goal. But watching 140+ Daniel taking the exam, I feel a lot of pressure. For WISE, an institution that pays so much attention to measurement foundation, I am ready for admission in September. . . Let's talk about textbooks first. The argument between Li Yongle and Chen Wendeng has been going on for a long time. Tell me about my experience. Li Yongle pays more attention to consistency and foundation. Of course, this is relative to Chen Wendeng. Many of Li Yongle's methods and ideas to solve problems will be more in line with the normal way of thinking of human beings. Reading Li Yongle's books will give you an "uninterrupted" feeling, and you won't suddenly see something that completely confuses you. On the other hand, Wendeng's book decisively tests the IQ of human beings and puts great emphasis on the skills of doing problems. My understanding is that Wendeng is using liberal arts methods to solve science problems, such as seeking the limit. When you get a problem, you must analyze it first. What is it, 0/0, or can it be transformed by rotation? Analyze and start setting. . . Many of its theorems of technical nature are open to solving some special problems. . You may have to struggle for 20 minutes with the ordinary method, which is still a huge amount of calculation, but if you use the same method as the plug-in, it may come out in 2 minutes, and the amount of calculation is still very small. This is Wendeng's strength, but it also means that you may have to remember more questions and corresponding methods. Many of Wendeng's methods are called BUG level. I don't know if it was a feeling of thinking before you did this type of problem, but it would be higher if you used bugs. . . However, if you only buy Chen Wendeng's review books, I strongly recommend that you buy a copy of Chen Wendeng's Shortboard. This book sums up and explains many technical methods in book reviews in considerable detail. I can say that if you don't have this book, studying Wendeng's review book by yourself may be full of question marks, and you don't know how a certain step pops up at once, so you must buy this book. As for exercises, I recommend Li Yongle's 660 questions, which are both skillful and difficult, and close to the exam. There are 400 questions by Wendeng, which are also necessary. Mathematics is to do more problems to feel. Let's talk about the following topics. First of all, calculus is an absolute big family in postgraduate mathematics, accounting for about 60%, which is about 90 points. It is also the penetration line of postgraduate mathematics. Limit, integral and differential equations can be connected in series with other disciplines, which is a relatively easy point to get comprehensive questions. Moreover, calculus is the most relevant of the three subjects, and all the way from the continuous limit differential ordinary differential equation is based on the front, so we should review it step by step. Calculus calculation has a lot of memory problems, so the formula must be skilled and can be written at any time. It must be done. Linear algebra has to be said to be the simplest of the three, but it involves a lot of calculations and simple topics, which are basically done according to routines. However, when making elementary changes, it is easy to make calculation mistakes, which leads to the tragedy of the whole topic from the beginning. This is the main problem that may be encountered in line generation. Often a topic is not written on paper, but it has to be written on paper for a long time. There are some skills in elementary transformation, which are introduced in detail in the book "Eliminating Shortboards", including the skills of finding the general solution and the special solution of multivariate equations with intersecting lines, which will definitely save you a lot of time. Probability and mathematical statistics. This theme is a tragedy. If you are a high school science student, you will find that you have learned classical probability in the first two chapters of high school. If your high school foundation is good enough, read these two chapters. The latter involves Bayesian formulas and statistics, which is just a kind of rote learning. You have understood those formulas and memorized them, and the statistical scores are basically no problem. However, we should pay attention to the conditions of the three laws of large numbers and the two central limit laws, which are easily overlooked. Don't feel sick. This chapter is about backrest. There is a general understanding here. The central limit law means that all messy limits are normally distributed in the final analysis. The law of large numbers means that the frequency of every event always fluctuates around the probability. This will probably help me remember, anyway, that's how I remember. The skill emphasized here does not mean that you have to drill difficult problems, but that it is possible to use a correct skill, which will save you a lot of time in the exam. Most of the topics in the postgraduate entrance examination are still basic topics, so we should recognize our own mathematical level and choose independently.