<p>I visited NYU today and was really excited to hear that it has one of the best mathematics departments in the country. I also found out that is part of the CAS school.</p>
<p>My question is...</p>
<p>Is it worth applying undecided and then choosing to major in mathematics or to choose mathematics right away, if that's even possible?</p>
<p>Considering the math at NYU is top-notch, is it a lot harder to get in if applying as a math major than say, undecided?</p>