Schaum's Outline of Signals and Systems Author:Hwei Hsu This powerful study guide gives you 571 problems in signals and systems, fully solved step-by-step! From SchaumÕs, the original study guide, and studentsÕ favorite with over 30 million guides soldÑthis solution-packed timesaver helps you master every type of problem you will face on your tests, from simple questions on linear time... more »-invariant systems to complex Fourier analysis of discrete-time systems and state space analysis. Go directly to the answers you need with a complete index. Compatible with any classroom text, SchaumÕs Outline of Signals and Systems is so complete itÕs the perfect tool for graduate or professional exam prep!« less