In recent years MATLAB(R), together with SIMULINK(R) and the many associated toolboxes, has became a standard in the fields of engineering, simulation and numerical calculation. A veritable programming environment in themselves, MATLAB(R) and SIMULINK(R) bring unequalled possibilities of resolution and simulation in the fields of numerical calculation and the study of dynamic systems to students and professionals alike. These features are enhanced by excellent graphic visualisation in 2D and 3D. The originality of this book is to intelligently marry theory and practice. The theory is exposed in the first half of the work, the second part of the work being devoted to the study of real applications of control process and signal processing. This approach allows the reader, at any stage, to see the importance of the theory worked out in practical examples and follow the examples with their theoretical structure presented in a clear and concise way. The presentation of these applications begins with an initial mathematical study of the physical processes leading to the discrete modelling stage. In each of these case studies, the authors demonstrate the power of MA TLAB(R) and SIMULINK(R) tools as well as the power of the toolboxes dedicated to the control of processes, fuzzy logic, neuronal networks and signal processing. This enlightening approach gives the reader (novice or specialist) a clear and thorough understanding of these tools.