LAPLACE AND z TRANSFORMS
The Laplace and z transform methods are useful for simplifying the analysis and design of linear time-invariant systems in continuous time and in discrete time, respectively. For example, considering a set of differential equations representing a system in continuous time, Laplace transform theory simplifies the problem by replacing the given set of differential equations by a set of algebraic equations.
In this appendix we will consider only linear time-invariant dynamic systems. For a more detailed study of the Laplace, z, and related transforms such as the Fourier and starred Laplace transforms ...