Control theory
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A control system is a device that keeps a variable at a certain value, despite only knowing what the current value of the variable is. An example is a cruise control, which maintains a certain speed, but only measures the current speed, and knows nothing of the system that produces that speed (wind, car weight, grade).
Blog posts
- What is control theory, and why do you need to know about it? by RichardKennaway
- Without models by RichardKennaway
- Controlling your inner control circuits by Kaj_Sotala