Generally speaking, as long as the textbook you buy is consistent with the outline of the third senior high school entrance examination in mathematics, any version of the textbook can be used. The following are the textbooks recommended by Teacher Cai: 1, Calculus of Economic Mathematics, Wu Chuansheng, Higher Education Press 2, Linear Algebra, Wu Chuansheng, Higher Education Press 3, Probability and Mathematical Statistics, Zhejiang University, etc. Higher education press is in the primary stage of postgraduate entrance examination. Therefore, it should be noted that no matter which version of the textbook is selected, the review must be closely combined with the postgraduate entrance examination outline, and the review should be carried out according to the outline and your own examination type. Don't look at the content that the outline does not require, so that it can be targeted, because the textbook is written for undergraduate teaching, not postgraduate entrance examination. In view of this, we must pay attention to preparing for the exam. It is necessary to choose a good tutorial book in the intensive review stage of postgraduate entrance examination. First of all, the content, type and difficulty of the book should meet the requirements of the postgraduate entrance examination outline. Secondly, we should grasp the difficulties, key points and trends of postgraduate entrance examination as a whole, and give a clear and accurate expression and induction; At the same time, there should be a sufficient number of carefully selected examples and exercises, pointing out and explaining the test sites, knowledge points and ideas that all kinds of postgraduate mathematics should understand and master skillfully, summarizing the mistakes that previous candidates are prone to make in the exam, pointing out the maze and avoiding unnecessary points. You can refer to the following basic principles when choosing exam review books. 1: When choosing books, try to choose the works of large regular publishing houses, such as Higher Education Publishing House, Renmin University of China Publishing House, National School of Administration Publishing House and Xueyuan Publishing House, which are worthy of everyone's trust. Of course, the books of other publishing houses should be said to be excellent, but they need to be carefully identified. 2. Try to choose the review materials prepared by teachers who have participated in the postgraduate entrance examination. As far as I know, there are Li Yongle, Hu Jinde (Tsinghua), Fan Peihua, Li Zhengyuan (Peking University) and Cai Tunlin in mathematics. When choosing counseling books, we should also pay attention to efficient use. Here, some suggestions are put forward on how to make good use of counseling books. First, when studying each chapter, I hope everyone will read it carefully, find out how many test sites and knowledge points there are in this chapter, as well as their characteristics, precautions and problem-solving ideas, and guide the review of this chapter in an outline way. Second, when doing exercises, try to do it independently. You should think more, summarize more, and compare several methods. You can't be satisfied with knowing what to do and doing the right answer. Time and efficiency are the key. Third, according to the successful experience of previous candidates in using this book. If candidates read several counseling books at the same time, not only the economic cost is high, but also the effect is often counterproductive. The so-called "thorough understanding" means that you should read the book carefully at least twice, including doing the questions. The first time is an understanding at most, and the second time can review the past and learn new things, rising to the level of rational understanding. (Source: Take the exam)