Still have to focus on your study, and don't delay your study. In addition, we should keep exercising and go to bed early and get up early.

The foundation and branches of mathematics will develop simultaneously. The early mathematical research is not its basis or branch discipline, but the easiest part of mathematics to understand, and set theory and mathematical logic as the basis of mathematics developed only after the branches of mathematics had developed considerably. The development of science and technology requires the synchronous development of mathematics foundation and frontier branches, because the expansion of the application scope of mathematics promoted by the development of modern science and technology in turn promotes the development of mathematics, which will promote the establishment of branch theories for studying various problems. At the same time, the adoption of electronic technology and the research of electronic computers, especially artificial intelligence, need to deepen the essence of human thinking. The first is the essence of mathematics, which involves extensive and in-depth basic problems, thus promoting the development of basic research in mathematics.

Mathematics has developed to a more abstract level. In a considerable range, especially the tedious and time-consuming numerical calculation, the use of electronic computers separates mathematicians from complex mechanical calculations, enabling them to concentrate on more complex and abstract problems; Even some very complex verification questions can be answered by computers, which further promotes the progress to more complex and abstract fields. Modern mathematics is developing in the direction of "high dimension", "multivariable" and "nonlinear", that is, to a more abstract field.

The simplest mathematical programming problem is linear programming, and its constraints and objective functions are linear. The solution of linear programming problems will be transformed into the solution of linear equations through the knowledge of linear algebra such as determinant and matrix. The emergence of linear programming and its simplex method has greatly promoted the development of operational research. A large number of practical problems are transformed into linear programming, and it becomes a reality to solve some large and complex practical problems with the help of computers.