MSC is the most commonly used and even the most authoritative classification system in the field of mathematics. The latest version is MSC20 10. If you need to browse the classification table, you can download the PDF version of the MSC classification table from the website of the American Mathematical Society.

If you want to retrieve the MSC classification table, you can search MathSciNet in Baidu, go to MathSciNet homepage, and click Freetools on the upper right to browse or retrieve the entire MSC classification table.