Hey guys! Does exist a book/series of books that can be used as a fast reference when in need? I study computer engineering, but I'm now moving my interest towards embedded systems and I have to study again circuits, electronic, signal processing etc. I would like to have at hand knowledge about differential equation, integral, fourier/laplace transforms, random variables, and all those theorems related. Of course I'm not interested in math-table (those filled only with formulas and nothing else), they're too much condensed and things aren't explained at all. But at the same time I don't need proofs or philosophical detours. Any idea? Thank you very much!