Basic 30 is for undergraduates, not for graduate students. There are two reasons: first, there are a lot of contents in the teaching materials that are not tested in the postgraduate entrance examination; Another point is that the requirements and directions of textbooks and postgraduate entrance examinations are biased, not to say that undergraduate textbooks are not difficult enough and comprehensive enough.

This book carefully selects and compiles hundreds of topics according to the sources of all the topics used in the postgraduate entrance examination proposition. It is beneficial for candidates to explore ideas and exercise their ability to analyze and solve problems in the review process. This book includes advanced mathematics (calculus), linear algebra, probability theory and mathematical statistics. The types of questions are multiple-choice questions, fill-in-the-blank questions and solution questions.