what is discrete and finite math
Finite Mathematics is a colloquial term used to describe a subset of discrete mathematics. Most commonly finite mathematics is a college bossiness course covering finite (not infinite) problems in probability theory, linear programming, basic concepts of matrices, and simple Calculus (of finite differences).
Graphs like this are among the objects studied by discrete mathematics, for their interesting mathematical properties, their usefulness as models of real-world problems, and their importance in developing computer algorithms. Discrete mathematics is the study of mathematical structures that are fundamentally discrete rather than continuous.