Discrete mathematics is relative to continuous mathematics, but there is no concept of continuous mathematics.

The advanced mathematics we study is based on modern limits and deals with problems related to continuity.

Discrete mathematics is a broad concept, because its research methods and contents are different from ordinary higher mathematics, and

The research content is mainly discrete, such as algebraic structure, logical structure and so on, so it is called discrete mathematics.

Advanced mathematics is the foundation of mathematics, with calculus as the main research object, which can involve all fields of real life.

The research object of discrete mathematics is the mathematical structure model of discrete quantitative relationship and discrete structure.