<p>Keep in mind that in some schools double majoring may involve more than simply checking both degree checklists (as Mrs. Turbo found out). Also, there may be a minimum number of specific electives that need to be taken (again, as Mrs. Turbo found out due to DIY advising). Since you will be transferring and taking courses in a different sequence, this could be important.</p>
<p>Also depending on what area of math you focus on (past the obvious Calc 1 thru X, ODE, and the like) and what area of ECE you focus on, there could be super-awesome overlap (the obvious Fourier this and Laplace that, but also the not so obvious numerical analysis, statistical communication theory, and the like). </p>
<p>In either case plan to be in college for a while, take summer courses, or both.</p>