Lesson 24 of Mathematics for Postgraduate Entrance Examination (version 20 14) contains three sections: advanced mathematics, linear algebra, probability theory and mathematical statistics. Each lesson is divided into five parts:

The first part is the network diagram of knowledge structure, which clearly presents the context of knowledge;

The second part is to explain the basic content, that is, to sort out the test sites required by the outline;

The third part explains the key points, difficulties and error-prone points. This part helps students to clarify vague concepts and eliminate thinking obstacles. The writing language in this part is lively and eloquent. For example, three commonly used methods for finding limit equivalent infinitesimal replacement, L'H?pital's law and Taylor's formula are described by three means of transportation-bus, ordinary train and high-speed rail, so that students can easily understand their advantages and disadvantages.

The fourth part is a typical example, which explains the typical exercises and problem-solving methods of each chapter in detail.

The fifth part is the appreciation of real questions, which is selected from 1987. First, you can check your learning effect by doing questions, and second, you can understand the law of proposition in the process of doing real questions.