Economic mathematics focuses on high numbers (that is, calculus) and learns a little probability theory, while financial mathematics can be a course of mathematics department. To learn linear algebra and apply probability theory and mathematical statistics highly on the basis of calculus, you must thoroughly understand it! ! ! ! Especially probability theory, which is quite difficult in itself, every step in it is calculated (pay attention to every step! ! ) are all calculus, especially integral (besides conventional integral, there is also polar coordinate analysis), and calculus cannot be separated from it.