Interactive exercises and demonstrations on the Web for basic signals, systems and control

Use of the World Wide Web to facilitate learning of basic, theoretical, technical material is described in terms of experience in developing interactive demonstration and exercise modules focusing on Fourier analysis, convolution, the sampling theorem, and elementary control systems. Early attempts involved multimedia presentations and downloadable MATLAB M-files, or server computations initiated by CGI forms. More recently, Java applets have been used to improve immediacy and interactivity while dramatically reducing server burden.