At present, the outline of 202 1 postgraduate entrance examination has been released. Of course, the syllabus of different subjects and categories is different. Mathematics for postgraduate entrance examination is divided into three subjects: advanced mathematics, linear algebra and probability statistics, and there are three categories: number one, number two and number three. So the content of the exam is different from the focus of the exam. What I bring to you today is 202 1 Postgraduate Mathematics (II).