The topic content of PEP is relatively difficult, but the logical relationship between knowledge and knowledge is clearer and easier to understand, which is suitable for almost all schools to choose as teaching materials. It is very important for us to pay attention to cultivating students' ability to integrate theory with practice.

However, the logic clarity of the textbook published by Beijing Normal University is relatively weak, and the topic is relatively simple, which puts higher demands on the requirements of school teachers and teaching and research groups. While properly supplementing the difficulty of the textbook, it can control the textbook well. Therefore, Beijing Normal University Edition is more suitable for schools with strong mathematics teaching and research teams.