For example, if you want to switch from Chinese to mathematics, you should either study by yourself or take high A courses in other majors. The Chinese department will definitely not offer this course by itself. This is the most painful, and it is not a semester, at least one and a half semesters, and it is not until the middle of the freshman semester that I start to apply for and take exams. When people around you are reading novels, you have to rack your brains to chew math. Think about it, how miserable it is. It will be much easier for them to switch from Chinese to mathematics, but from biology to mathematics, because biology itself studies advanced mathematics, so it is not difficult for them to switch to professional examinations.
If you learn mathematics well enough and pass the professional examination, it will be very convenient for the latter, because the mathematics department of Fudan is particularly willing to be admitted by others, and Fudan also pays special attention to mathematics, a basic subject. Every year, about 40-60 people in the whole school transfer to the department of mathematics, which is still very large compared with other universities. Most majors in Fudan are willing to accept students who change majors, but some majors feel that their basic courses are irreplaceable, and students from other majors are unable to make up, so there is no way out.
There is another troublesome problem. Changing majors depends on the grade points of freshmen last semester. However, there are no serious courses in the first semester of freshman, mostly English, computer, politics, military theory and general education courses, which are highly uncertain. So the grade point of freshman is very mysterious.
Language to medicine, similar to the above. However, if it is a minor language major, I don't know if there is any other agreement.