Difference between revisions of "Feedback"
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Karl Jones (Talk | contribs) m (Karl jones moved page Feedback loop to Feedback: Just Feedback, thank you.) |
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| − | '''Feedback''' is a phenomenon which occurs when outputs of a system are routed back as inputs. | + | '''Feedback''' is a phenomenon which occurs when outputs of a system are routed back as inputs. |
| + | |||
| + | == Description == | ||
This process of outputs becoming inputs forms a [[Signal chain|signal chain]] of cause-and-effect. | This process of outputs becoming inputs forms a [[Signal chain|signal chain]] of cause-and-effect. | ||
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* [[Negative feedback]] | * [[Negative feedback]] | ||
* [[Positive feedback]] | * [[Positive feedback]] | ||
| + | * [[Recursion]] | ||
== External links == | == External links == | ||
* [https://en.wikipedia.org/wiki/Feedback Feedback] @ Wikipedia | * [https://en.wikipedia.org/wiki/Feedback Feedback] @ Wikipedia | ||
Revision as of 07:11, 4 February 2016
Feedback is a phenomenon which occurs when outputs of a system are routed back as inputs.
Description
This process of outputs becoming inputs forms a signal chain of cause-and-effect.
The system can then be said to feed back into itself, forming a closed circuit or loop.
The notion of cause-and-effect has to be handled carefully when applied to feedback systems:
"Simple causal reasoning about a feedback system is difficult because the first system influences the second and second system influences the first, leading to a circular argument. This makes reasoning based upon cause and effect tricky, and it is necessary to analyze the system as a whole."
See also
External links
- Feedback @ Wikipedia
