1, big principle
The structure of is: The model ... in the first question or preliminary model is valid, and the result is ... or see the table below. In the second or further question, the improved model or optimized model of …. The advantage of this model is that.
2. Details
2. 1 Try not to have "we" and other references, and you can use "this article".
2.2 The most important thing is to explain clearly the mathematical methods used, the mathematical model established, the mathematical knowledge used and so on.
2.3 Be sure to use mathematical terms, such as variance and expectation.
2.4 Briefly introduce the advantages of the model established in this paper, don't exaggerate yourself, but be careful of the shortcomings.
Is this ok?