<p>Multivariable calculus + linear algebra + differential equations is typically a 2 semester or 3 quarter sequence that is nominally for university sophomores. If you have finished those by high school graduation, then you are 4 courses ahead in Math (and that would gain more breathing room in your schedule).</p>
<p>Be aware that junior/senior level Math courses tend to be much more proof and derivation oriented than freshman/sophomore level Math courses; the Math department at the university may have some suggestions about which courses are a more “gentle” transition than others (e.g. Berkeley’s Math department suggests the intermediate linear algebra course is a better first junior level course than analysis).</p>