No, Tang Jiafeng, a well-known math tutor for postgraduate entrance examination, is a doctor from Nanjing University. He can teach advanced mathematics, linear algebra, probability statistics from scratch, and he can master all the knowledge points. He has been a member of the marking group of the postgraduate mathematics examination for many years, and has been engaged in postgraduate mathematics teaching and proposition research for many years. Instruct a large number of students with high scores or even full marks every year, and are praised as "full marks coaches" by students. The contents of advanced mathematics taught by Tang Jiafeng are basically the same as those in the book, but only the contents of line generation and probability statistics in the book.