Hello i need some help with a postgradyuate lesson we have. It is called signal and systems and basically starts with some introduction for signals and systems and after that basic principles we learn about Fourier and Laplace transformattions. Unfortunately i dont have any time at all to participate to that lesson. So i need u to suggest me a very good book so i can read theory and solve exercises What i need is Good explanation of theory I want the book to have the necessary maths that i ll need to solve exercises. My mathematic level is so poor :( Finally i need the book to have solutions for the exercises cause i want to be able to check if i am correct or not. I dont care about sire or cost.