ABSTRACT
Analysing the behavior of functions whose values are known on a finite or infinite set of discrete points in a given domain cannot be achieved by using the existing Fourier or Laplace Transform techniques. Accordingly, some efficient procedure for the numerical evaluation of the system will be aimed at. For example, such necessity do arise for the determination of the output relation when the discrete input function in known in a signal processing system. The Z‐transform technique is one such methods to answer the problem proposed above.
