<p>“Actually, the kind of math most physics/engineering students take in their freshman year is not what something interested in pure math should be taking. While you don’t need to take more than one or two pure math courses per semester as a freshman, you should start then.”</p>
<p>Except that getting through calculus 1, 2, 3 and diff eq are required for virtually all math and engineering programs and are generally prerequisites for most higher-level math classes.</p>