1. Choose a topic: First, you need to choose a topic that interests you. This topic should be challenging, but it should also be something you can handle. You can get some inspiration from your courses or your professors.

2. Conduct research: Once the topic is selected, in-depth research is needed. This includes reading related books, journal articles and other resources. You need to know your project background and related theories.

Make a plan: Before you start writing, you need to make a plan. This plan should include the main points you intend to discuss and how you intend to organize your paper.

4. Writing: After your plan is completed, you can start writing. You should express your views as clearly and concisely as possible. You should use precise mathematical language and make sure that your argument is logical.

5. Revision: After completing the first draft, you need to revise it. This includes checking grammar mistakes, spelling mistakes and punctuation mistakes, and making sure that your paper is coherent.

6. Feedback: After you finish the revision, you should let your professor or others read your paper and provide feedback. They may provide some useful suggestions to help you improve your paper.

7. Final revision: Make final revision according to the feedback to ensure the quality of the paper.

Generally speaking, it takes time, energy and concentration to write a good math paper. However, if you follow these steps, you may write an excellent paper.