What is a feedback polynomial good for?

Hi there

When I got a linear relation $\displaystyle s_{m+2}=s_m-s_{m+1}$ its characteristic polynomial is $\displaystyle x^2+x-1$ and its feedback polynomial is $\displaystyle -x^2+x+1$ but what is the sense of a feedback polynomial?

Where is it used? Where is it applied? In engineering or anywhere?

Regards

Re: What is a feedback polynomial good for?

Quote:

Originally Posted by

**huberscher** Hi there

When I got a linear relation $\displaystyle s_{m+2}=s_m-s_{m+1}$ its characteristic polynomial is $\displaystyle x^2+x-1$ and its feedback polynomial is $\displaystyle -x^2+x+1$ but what is the sense of a feedback polynomial?

Where is it used? Where is it applied? In engineering or anywhere?

Regards

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