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Suppose we have a closed feedback system with loop gain = L(s) = G(s)H(s). The characteristic equation is

[tex]1 + L(s) = 0[/tex]

What is the significance of the transformation [itex]s \rightarrow 1/s[/itex] and what bearing does it have on root loci and Nyquist stability?

I can see that the points [itex]s = \pm \infty[/itex] will be mapped to [itex]s = 0[/itex].

Thanks,

Vivek.

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# Significance of 1/s

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