I'm studying non-mathematical engineering in postgraduate entrance examination, and I'm taking the math test for the first time. I want to see how Jimmy Dovich's mathematical analysis is. Does it help? I'm a sophomore now, and I don't have enough time. I'm in the math department. You are talking about Jimmy Dovich's problem set of mathematical analysis. This book has more than six titles and more than 4,000 titles. In fact, there are many calculation questions, some of which are not very suitable for postgraduate entrance examination, because a lot of knowledge in them is rarely involved in the textbooks we are in contact with now, and it is not the focus. You can focus on those books on extreme differential and integral, because the comparison of mathematical preliminary test series is not very important. Like Dirichlet discriminant method, these are rarely talked about. You can choose the questions in the exercise solution. Many questions are somewhat repetitive and you can choose to do them, but be careful not to look at the answers first. I think you have done a good job in this book, and every liter of mathematics has any questions, which is also the solution to the classic math exercises!