hey all, I DO NOT KNOW THE BEST FORUM TO PUT THIS!!! So i chose calculus.... I am a junior physics/mathematics double major. I am looking for a good math book to really get in depth on some of these topics. I have had Calc 1-3, ODE, PDE, and a special functions class (Legendre, Laguerre, Bessel functions etc.) and i am looking for a really good math book that has more background on all of these topics, especially PDE and its outreaches. I have Mathematical Methods in the Physical Sciences by Boas, and I currently have from the library Mathematical Methods for the Physical Sciences by K.F. Riley that I really like, but cant seem to find in hardcover anywhere to purchase. My question is, what do you suggest for further study? The library here has a huge mathematics/physics section so i can check most any book out before I purchase anything. I would really like the math to be geared toward physics or at least the physical science. Although a good math book thats not applied would be sufficient. Thanks!!!