Proportional-integral-derivative (PID) controllers are widely regarded as the most important tool for a control engineer. However, in today's era of computer science, MATLAB has acquired the position of an essential tool for the modern system engineering. This book has been written in a manner to serve as a practical guide for both practicing engineers and engineering students. Numerous applications use MATLAB as the working framework which shows that it is an effective, comprehensive and handy technique for performing technical computations. This book discusses various prominent applications in which MATLAB is used: in image processing algorithms, and from Graphic User Interface (GUI) design for educational purposes to Simulink embedded systems.