Rom the beginning of the last decade we have witnessed a revolution

in computer technology and an explosion in user-friendly applications.

This revolution is still continuing today with low-cost personal computer

systems that rival the performance of expensive workstations. This technological prowess should be brought to bear on the educational process

and, in particular, on effective teaching that can result in enhanced learning. This companion book on digital signal processing (DSP) makes a

small contribution toward that goal.