math textbook

<p>So I'm currently enrolled in Math 10A, but I'm planning to test out because i need 20A for my major. Since I don't know what math I'm gonna be in yet, should I just hold off on buying the textbook? I could just buy it at the campus bookstore when I find out right? Or get it in two days with Amazon Prime.</p>

<p>Should I already be trying to obtain all the textbooks I need now, or is it safe to wait until I've moved in? (Wed. Sept 15)</p>