<p>Currently I am taking an engineering course called Mathematical Physics, using a book titled Applied Partial Differential Equations with Fourier Series and Boundary Value Problems.</p>
<p>I took my introductory diff eq (only ODEs) about 2 years ago, so a lot of this stuff is challenging to me. I've tried going back to my ODE notes/textbooks, but does anyone here have other helpful resources/study guidebooks/websites?</p>
<p>All help is appreciated.</p>