In recent years the analysis and synthesis of control systems in descriptor
form has been established. The general description of dynamical systems by
differential-algebraic equations (DAE) is important for many applications
in mechanics and mechatronics, in electrical and electronic engineering, an
d in chemical engineering as well. In this contribution the pros and cons o
f system modelling by differential-algebraic equations and an actual state
of the art of simulation, analysis and design of descriptor systems is pres
ented. (C) 2000 IMACS. Published by Elsevier Science B.V. All rights reserv
ed.