The material that follows is not strictly required reading—in particular, when you are mostly interested in practical applications of feedback techniques to computer systems.
At the same time, it is not recommended to skip these chapters entirely. Many operations and concepts will make more sense once their theoretical underpinnings are understood. And all this material is simply required if you ever want to dig further into feedback and control theory.
But feel free to skim along, and to come back to dive deeper as the need arises.
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