1. Advanced mathematics, the main content is limit → derivative → calculus. Derivative is similar to finding the slope of the tangent of a curve, and calculus is similar to finding the area of an irregular figure.

2. Linear algebra, whose research objects are vectors, vector spaces (or linear spaces), linear transformations and finite dimensional linear equations. Learn to understand multivariate equations.

3. "Probability Theory" studies the quantitative laws of random phenomena. Learned to study the possibility of things happening.

4. Statistics, mainly through the establishment of mathematical models, data collection, quantitative analysis and summary, and then inference and prediction, to provide basis and reference for relevant decisions.

Probability theory and statistics depends on the professional situation, and some majors do not need to be studied.