Symbolic algebra and physical-model-based control

Physical-model-based control has been introduced to provide a general methodology for building system-specific controllers which make use of system-specific information about the system to be controlled. Partially-known and nonlinear systems form two categories of systems to which such a methodology is particularly appropriate. Because each control algorithm has to be specially constructed for each system, it is essential to provide software to help in this process. The use of computer algebra is a vital part of such software. The purpose of the paper is to present the computer algebra aspects of physical-model-based control