In this second but completely independent reference monograph on the latest MATLAB 6 systems. 5 SP1/7 + Simulink 5/6 describe their application in mathematical calculations and mathematical modeling. Particular attention is paid to the analysis, modeling and design of systems and devices, in particular electro-radiotechnical and telecommunication. The description of many Blockset and Toolbox extensions of the latest implementations related to mathematics and mathematical modeling. A number of packages in our literature are described for the first time. Considerable attention is paid to visualizing the results of work and describing hundreds of examples of MATLAB application and its extensions. For engineers, researchers, students and teachers of universities and universities .