If analytical methods are not readily applicable for finding the inverse Z transform, then one can resort to dividing the numerator by the denominator. Analytical formulas are available for the general term.

The numerical values calculated are plotted and shown in the applet below for different values of a to h. The applet also illustrates the final value theorem.

When enabled, the following gif file show how the applet should appear. The yellow x shows the final value according to the final value theorem agreeing with the asymptotic steady state values obtained for the inverse Z transform.

© 2007 Cuthbert Nyack.