University big data and accounting majors need to study for a year or a year and a half. The advanced mathematics courses for big data majors and accounting majors are difficult, and the learning cycle depends on the individual's learning ability and mastery. The time for junior college students to study advanced mathematics is about one year or one and a half. The advanced mathematics courses for big data majors and accounting majors are rich in content and need to master many mathematical knowledge points, including calculus, linear algebra, probability theory, mathematical statistics and so on.