Linear Systems and Signals

This introductory level book gives comprehensive treatment to signals and linear systems. In it, the physical appreciation of concepts is emphasized rather than the mere mathematical manipulation of symbols. Mathematics is used to enhance physical and intuitive understanding, instead of to prove axiomatic theory. This conveniently organized book is divided into five parts and allows for the flexible teaching of discrete-time and continuous-time systems. Wherever possible, theoretical results are interpreted heuristically and are supported by carefully chosen examples and analogies.