Other majors don't understand. Let me tell you something about the Department of Mathematics and the Department of Physics. In many schools, the mathematics major in the Department of Mathematics and Science is a normal major, so you should pay attention when choosing a major (other majors also include normal majors, even machinery! )。 This department is very theoretical and mainly focuses on mathematics. In our school, this department has two majors, mathematics and applied mathematics and information and computing science. Among them, mathematics and applied mathematics are normal classes. Personally, it is not recommended. If you want to study for postgraduate entrance examination and PhD, you can consider Fuka's academic efforts, and then he will become a professor and engage in algorithm research. Things like mathematics and physics will make you think a lot, such as eternity, time and universe, because they are too theoretical and even subvert past experience. As for information and computing science, I have learned a lot. Learn a little math, computer, programming and physics. I majored in this major, and most people in my class are going to take the postgraduate entrance examination and go to finance. The deepening of mathematics than other majors is really helpful for the postgraduate entrance examination. It's a boy, right? It is ok to study engineering. The development of machinery and civil engineering should be quite good. But difficulty and fatigue are necessary.