This video sets the stage for the topics that I want to cover over the next month or two. This is an overview of how you go from a physical system to a linear model where you can design a linear control system. Once you have a working linear controller you then need to test it in your nonlinear model and the real physical system. 

Once you understand how we use linear models and simulations you will have a better appreciation as to why we place so much effort and attention learning how to model a system. 

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