I’m interested in mathematics in the College and financial engineering in Fu
Financial Engineering, as the name implies, is an off-shoot of the engineering discipline. So you would need to be an Engineering major. In this case, you would need to be in SEAS/Fu and majoring in Operations Research. From there, you would apply in your sophomore year to do an add-on Concentration in Financial Engineering. http://ieor.columbia.edu/bs-operations-researchfinancial-engineering