Discrete means discontinuous. The data range of general mathematics is continuous, such as those functions in junior high school and senior high school, which are usually within a certain interval. Discrete mathematics is discontinuous numbers, such as 1 and 2, and the image in the middle is1.1.1.1.1165438. So it's called discrete mathematics.

Discrete mathematics can also be said to be the basic core discipline of computer science. Discrete mathematics can be regarded as a bridge between mathematics and computer science, because it is inseparable from mathematical knowledge such as set theory and graph theory, and is also related to database theory and data structure in computer science. It can lead people into the thinking field of computer science and promote the development of computer science.

Subject content:

1, set theory: sets and their operations, binary relations and functions, natural numbers and natural number set, cardinality of sets;

2. Graph theory: the basic concepts of graphs, Euler graphs and hamiltonian graph, matrix representation of trees and graphs, planar graphs, graph coloring, dominating sets, covering sets, independent sets and matching, weighted graphs and their applications;

3. Algebraic structure: the basic concepts of algebraic system, semigroup and singularity, group, ring and field, lattice and Boolean algebra;

4. Combinatorial mathematics: combinatorial existence theorem, basic counting formula, combinatorial counting method and combinatorial counting theorem;

5. Mathematical logic: propositional logic, first-order predicate calculus and resolution principle.

References:

Baidu encyclopedia-discrete mathematics