However, economic mathematics requires quite high probability theory and mathematical statistics, and many related softwares are in the field of economics, especially metalworking. Postgraduate entrance examination is a compulsory course, which is more demanding than calculus. I suggest you learn probability theory well. I'd better learn as well as I can while I have spare capacity. The above are only the most basic requirements of metalworking mathematics.
The entertainment circle is like a big garden, with countless seeds sown, and few can flourish in the end.
The most regrettable thing is that some people will leave to