By Ivo Welch, noted professor of finance at Brown. Includes interesting advice, too. Samples:
In my opinion, advanced math courses (such as real algebra) can be interesting, but they also have little direct application in financial economics. (They are great for students who want to enter a PhD program in economic theory or math.) The important math courses from a financial economics perspective are [a] basic high-school algebra, [b] intro calculus (up to basic one-dimensional integration), and [c] basic linear algebra. Mathematical aptitude and comfort with working with equations is much more important than mathematical sophistication. Exception to the Rule: If you want to go into fixed income or options, then there is one advanced math course that would be very good: stochastic calculus. . . .
Although last, the following may be the single-best suggestion that I can give you: If you are not comfortable speaking up or presenting yourself, you should take a course in theatrical acting . . . . If you cannot do this, try to see if there is an amateur acting company or acting workshop that you can join. Being able to play roles and speak up (as a stage actor has to) may be as important to your success in life than all the economics&finance courses you may ever take. When you interview or talk to a client, you are in effect playing a role!