I. Format of Appendix

Appendices are generally placed at the end of the model and should have their own titles and numbers, such as "Appendix A" or "Appendix 1". The contents of the appendix shall be arranged in the following order.

1. Data and parameters: list all data and parameters used, including their sources and units.

2. Calculation process: describe all calculation processes used in the model, including formulas, algorithms and program codes. If special software or tools are used, they should also be stated here.

3. Charts and images: If charts or images are used in the model, their original data and drawing methods should be provided in the appendix.

4. Additional information: If the model needs to provide some additional information, such as assumptions, restrictions or other relevant background knowledge, it should also be explained in the appendix.

Second, the contents of the appendix

1 data and parameters

List all data and parameters used in the appendix, including their sources and units. These data and parameters should be the basis of the model, so their sources and accuracy should be listed as detailed as possible. For example, if a data set is used, the source, collection method and treatment process of the data set should be explained. If parameters are used, the definition and calculation method of parameters should be explained.

2. Calculation process

Describe all calculation processes used in the model in the appendix, including formulas, algorithms and program codes. These calculation processes should be the core of the model, so their implementation methods and calculation steps should be described in detail as much as possible.

For example, if you use a formula, you should explain the source, derivation process and scope of application of the formula. If an algorithm is used, the principle, advantages and disadvantages and implementation methods of the algorithm should be explained. If the program code is used, the structure, function and parameter setting of the code should be explained.

3. Charts and images

If a chart or image is used in the model, its original data and drawing method should be provided in the appendix. These charts and images should be important results in the model, so their drawing methods and data sources should be described as detailed as possible. For example, if a chart is used, the type, data source and drawing method of the chart should be explained.

If an image is used, the type, data source and processing method of the image should be explained.

4. Additional explanation

If the model needs to provide some additional information, such as assumptions, constraints or other relevant background knowledge, it should also be explained in the appendix. This information should be an important background in the model, so its source and application scope should be described as detailed as possible.

For example, if assumptions are used, the basis, scope of application and influencing factors of the assumptions should be explained. If restrictions are used, the source, scope of application and influencing factors of the restrictions should be explained. Where relevant background knowledge is used, the source, scope of application and influencing factors of the knowledge shall be explained.

The appendix of mathematical modeling is a very important part, which can be used to supplement some details of the model, provide data and calculation process, and explain some assumptions and constraints in the model. Therefore, when writing the appendix, all aspects of the model should be described in detail as much as possible so that readers can better understand and apply the model.