How do MIT and Princeton compare for undergraduate mathematics?

The biggest practical difference is that MIT makes it easier to pursue mathematics in an intensely technical, flexible ecosystem alongside computer science, physics, engineering, and applied research, while Princeton gives mathematics a more deliberately undergraduate-centered, proof-oriented liberal arts setting with substantial independent work. MIT’s Mathematics Department offers a very broad ladder of advanced and graduate-level classes, and its UROP program can connect undergraduates to research early. Princeton math students benefit from small upper-level courses, close access to faculty, and a curriculum that culminates in major independent work, including a senior thesis.

At MIT, the math major can be shaped toward pure math, applied math, statistics, theoretical computer science, or a combination of these. The pace can be exceptionally fast, particularly in honors and graduate courses, and students who enjoy moving freely among technical departments often find many ways to build an individualized program. Research may be especially accessible through UROP, faculty labs, and collaborations that cross departmental lines, though students need to take initiative in a large, high-energy environment.

Princeton is especially compelling for a student who wants sustained mentorship in pure mathematics. Its independent-work culture means that mathematical writing, reading advanced material, and developing a substantial thesis are built into the undergraduate experience rather than being optional extras. Princeton also has strong opportunities in applied math, theoretical CS, and statistics, but its overall academic rhythm is less defined by engineering and more by focused study within a residential undergraduate community.