Mathematics includes geometry and algebra. Geometry is divided into three-dimensional and analytic geometry, higher geometry, Riemann, discrete geometry, how many variables are quadratic, the combination of numbers and shapes, etc. Algebra is divided into integral, probability, statistics, function, equation, number theory, initial height, modeling, optimization problems, super-order discrete problems and so on. Most of these are required exams, and the types of questions are difficult. There are also something in between, such as mathematical analysis, operational research, universal function and so on. Most of these are optional, but the topics are narrow and mostly rely on memory.