My buddy hasn't done math problems for over a year, and I'm not familiar with them. In addition, I also want to ask others from the internet like you, but later I found that people on the internet don't know the subject as well as you do, so even if you want to ask, you should have your own ideas and ask a certain question, instead of saying how to do it when you send a topic so widely. This is extremely irresponsible. I think you are trying to improve yourself. Do it yourself. Although you may not have any ideas at first, you can find similar topics and see how other people's papers are written. This topic is always like this.