(Formal Definition of an Unstable System)
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( there is no <math>\,\delta \in \mathbb{R}\,</math> such that <math>\,|y(t)|<\delta , \forall t\in\mathbb{R}\,</math> )
 
( there is no <math>\,\delta \in \mathbb{R}\,</math> such that <math>\,|y(t)|<\delta , \forall t\in\mathbb{R}\,</math> )
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== Comments on Other Answers ==
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[[Talk:HW3-A Derek Hopper_ECE301Fall2008mboutin]]
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[[Talk:HW3.A Max Paganini_ECE301Fall2008mboutin]]
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[[Talk:HW3.A Zachary Curosh_ECE301Fall2008mboutin]]

Revision as of 15:58, 17 September 2008

Formal Definition of a Stable System

A system is called stable if for any bounded input $ \,x(t)\, $

( $ \,\exists \epsilon \in \mathbb{R}\, $ such that $ \,|x(t)|<\epsilon , \forall t\in\mathbb{R}\, $ )


yields a bounded output $ \,y(t)\, $.

( $ \,\exists \delta \in \mathbb{R}\, $ such that $ \,|y(t)|<\delta , \forall t\in\mathbb{R}\, $ )

Formal Definition of an Unstable System

A system is called unstable if there exists a bounded input $ \,x(t)\, $

( $ \,\exists \epsilon \in \mathbb{R}\, $ such that $ \,|x(t)|<\epsilon , \forall t\in\mathbb{R}\, $ )


that yields an unbounded output $ \,y(t)\, $.

( there is no $ \,\delta \in \mathbb{R}\, $ such that $ \,|y(t)|<\delta , \forall t\in\mathbb{R}\, $ )

Comments on Other Answers

Talk:HW3-A Derek Hopper_ECE301Fall2008mboutin

Talk:HW3.A Max Paganini_ECE301Fall2008mboutin

Talk:HW3.A Zachary Curosh_ECE301Fall2008mboutin

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