This friend, I happen to teach marketing at the university. Let me answer this question for you. The major of marketing in our school is mathematics, which is not only in our school, but also in schools all over the country. Marketing belongs to management discipline, and all management disciplines need to learn mathematics, at least economic mathematics, such as calculus. Of course, there is a difference between undergraduate and junior college mathematics subjects. Generally speaking, economic mathematics is to be learned, but the difficulty and requirements of learning are different. As far as I know, in addition to studying calculus or advanced mathematics, undergraduate marketing should also study economic mathematics such as linear algebra, probability theory, mathematical statistics and even fuzzy mathematics. Although there are differences in mathematics learning in different schools, there is no doubt that it is necessary to study mathematics in any university's economic management major.

As for what materials you want to buy to cooperate with your study, in order to learn mathematics well, in addition to studying the mathematics courses arranged by the school, you can also buy some tutoring materials related to your own mathematics study, such as synchronous exercises of calculus, probability theory and mathematical statistics.