Welcome to the MATLAB Modules for Control Systems Principles and Design. They are designed to help you learn how to use MATLAB for the analysis and design of automatic control systems. The flow of the modules is given by the box below. Throughout the modules, you will find links to all of the modules. Links are also given to come back to this page (Home), and to the complete index. We are interested to hear how you use the modules and your suggestions for improvements ; feedback link has been included for this purpose. We focus on MATLAB Version 7. For the most part, the material applies to 6x version as well. MATLAB continues to evolve as a software tool, However, the basic operation of MATLAB and its basic capabilities have, more or less, stabilized around the optimum level. Dramatic changes are not expected in near future; the material, therefore ,will continue to apply to 7x version as well. We envision that you will follow along with these modules by running MATLAB/Simulink in one window and the modules in another. You should be able to run most of the MATLAB/Simulink programs by copying and pasting MATLAB scripts between windows, and by downloading Simulink files. If you find that the font is too hard to read, you can change the default font in your browser.