Difference between revisions of "Feedback"

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'''Feedback''' is a phenomenon which occurs when outputs of a system are routed back as inputs.  
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'''Feedback''' is a phenomenon which occurs when [[Output|outputs]] of a [[system]] are routed back as [[Input|inputs]].
  
 
== Description ==  
 
== Description ==  
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== See also ==
 
== See also ==
  
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* [[Control theory]]
 
* [[Negative feedback]]
 
* [[Negative feedback]]
 
* [[Positive feedback]]
 
* [[Positive feedback]]
 
* [[Recursion]]
 
* [[Recursion]]
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* [[System]]
  
 
== External links ==  
 
== External links ==  
  
 
* [https://en.wikipedia.org/wiki/Feedback Feedback] @ Wikipedia
 
* [https://en.wikipedia.org/wiki/Feedback Feedback] @ Wikipedia
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[[Category:Algorithms]]
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[[Category:Computation]]
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[[Category:Design]]
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[[Category:Patterns]]
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[[Category:Physics]]
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[[Category:Recursion]]
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[[Category:Structures]]
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[[Category:Systems]]

Latest revision as of 15:16, 24 April 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.

Cause and effect

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