It is really difficult to take the postgraduate entrance examination for mathematics majors. The courses of mathematics major are usually deep and extensive, including but not limited to advanced mathematics, linear algebra, probability theory and mathematical statistics, discrete mathematics, real variable function, complex variable function, partial differential equation, real analysis, abstract algebra, topology, mathematical logic, combinatorial mathematics, optimization theory, stochastic process, financial mathematics, numerical analysis, operational research, mathematical modeling, mathematical experiments and many other fields. The competition for postgraduate entrance examination in mathematics major is fierce. According to the data, the enrollment ratio of mathematics majors is often very high, which means that there are many people competing for each vacant postgraduate place. Therefore, even if you get good grades, you may face the risk of falling out of the list. It is difficult to review the postgraduate entrance examination for mathematics majors. Besides mastering a lot of professional knowledge, you need to do a lot of exercises to improve your problem-solving ability and speed. At the same time, due to the complexity of the knowledge points of mathematics major, many incomprehensible problems may be encountered in the review process, which requires a lot of time and energy to solve.