This monograph deals with control problems of discrete-time dynamical
systems, which include linear and nonlinear input/output relations. It
will be of popular interest to researchers, engineers and graduate
students who specialized in system theory. A new method, which produces
manipulated inputs, is presented in the sense of state control and
output control. This monograph provides new results and their
extensions, which can also be more applicable for nonlinear dynamical
systems. To present the effectiveness of the method, many numerical
examples of control problems are provided as well.