Model) is a kind of simulation, using mathematical symbols, mathematical formulas, programs, graphics, etc. Describe the essential attributes of practical topics abstractly and concisely. It may explain some objective phenomena, or predict the future development law, or provide an optimal strategy or a better strategy in a sense to control the development of a phenomenon. Generally speaking, mathematical model is not a direct copy of real problems, and its establishment often requires people to observe and analyze real problems in depth and carefully, and also requires people to use all kinds of mathematical knowledge flexibly and skillfully. The process of abstracting Mathematical models from practical problems by applying knowledge is called mathematical modeling.

Modeling).