Understand what financial mathematics is. It is not simply to let a person know both mathematics and finance. The foothold of financial mathematics is mathematics, and mathematics is studied. Futures, options, swaps and other derivative financial products are designed with mathematical statistical models. There will be financial theories such as economics, finance and accounting. In undergraduate financial mathematics courses, almost all are mathematics, such as the famous option pricing model, fixed income model, the application of C++ programming language in finance, time series model and so on. It is very difficult for an economics undergraduate to transfer to financial mathematics when he is a master. Many universities have applied for master's degrees in financial mathematics, financial engineering, quantitative finance and risk management from undergraduates majoring in applied mathematics, information and computing science, actuarial science, applied physics and statistics. Without a solid mathematical foundation, they can't learn.