1, advantages of model evaluation

Based on the correct and clear analysis of the meaning of the problem, this paper establishes a reasonable and scientific variable cost calculation model to prepare conditions for profit maximization. Based on the hypothesis, a depreciation expense calculation model is established, which skillfully solves the problem of uncertain number of real houses and forward houses.

A single-objective programming function with the goal of maximizing profit is established, and it has certain practical value to choose MATLAB programming. Correct data processing method is adopted to solve decimal rounding problem.

2. Shortcomings of model evaluation

The constraints that are not added in the programming lead to the final operation result of n, t and Niji being decimal. Finally, we make up for it manually. The estimated sales volume of the company will definitely be different from the actual sales volume, but in the model calculation, we take the estimated value as an approximation and it will definitely be different from the actual value.

In the hypothesis, we made the assumption that "the customer completely obeys the company's distribution", which is not completely consistent with the actual situation. Too many variables introduced in the process of modeling are easy to cause "dimension disaster", which is not conducive to programming.

Significance of mathematical modeling

A mathematical model is generally a mathematical simplification of actual things. It often exists in an abstract form close to the real thing in a sense, but it is essentially different from the real thing. There are many ways to describe an actual phenomenon, such as recording, video recording, metaphor, rumors and so on.

In order to make the description more scientific, reasonable, objective and repeatable, people use a generally accepted strict language to describe various phenomena, which is mathematics. What is described in mathematical language is called a mathematical model.

Sometimes it is necessary to do some experiments, but these experiments often use abstract mathematical models as substitutes for actual objects, and the experiments themselves are also theoretical substitutes for actual operations.

Refer to the above content: Baidu Encyclopedia-Mathematical Modeling