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This site is basically my English blog. The main topics will include programming, mathematics, and online courses review.
My Chinese blog is "www.ran-blog.com." The main difference between these two websites are:
- "www.ranblog.com" is more about teaching something that I have already been familiar with.
- "www.ran-blog.com" is more about documenting what I have learned.
Regarding membership, you can read this article.
Limited-Time Offer (50% Off Forever)
[This is for the early supporters. You will have 50% Off forever! This promotion will end when I finish 10 premium chapters (7 left now).]
My Math Textbook Solutions
All My Solutions for Elementary Number Theory Problems (David M. Burton’s 7th Edition)
All my solutions for Elementary Number Theory Problems (David M. Burton’s 7th).

I hope this website will be helpful for anyone who finds it! 😊😊
