Controllers are designed to make certain physical variables of a system behave in a desired way by manipulating some input variables. Simple low-order controllers are usually preferred to better performing but high-order controllers, because of their simplicity and practicality. In this book, the problem of parameterizing stabilizing fixed low-order controllers for linear time-invariant single-input single-output systems is studied. Using a generalization of the Hermite-Biehler theorem, an algorithm is given for the determination of stabilizing gains for linear time-invariant systems. By...