EE3020 - Important Signals Prerequisities Algebra Calculus Applications Signals and Systems Classes Used In EE 4220 EE 4820 Textbook C. L. Phillips, J. M. Parr, and E. A. Riskin, Signals, systems, and transforms. Boston: Pearson, 2014. Videos for Important Signals Unit Step Function Unit Rectangular Pulse Unit Impulse Function Properties Outside References Unit Step Function Unit Rectangular Pulse Unit Impulse Function