Which textbook version is more suitable for self-study, more detailed and easy to understand, the ancient bridge of the method of mathematical physics or the method of mathematical physics?
If I'm not a physics major, I find it difficult to teach myself. In school, learning this kind of thing well is only the key problem to master the teacher's requirements. It is difficult to learn a course or a subject well, so you must first make clear what your small goal is. If you know, it doesn't matter what you look at.