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[Octave-bug-tracker] [bug #47302] control system feedback() OR TF() give


From: Doug Stewart
Subject: [Octave-bug-tracker] [bug #47302] control system feedback() OR TF() gives wrong result z plane
Date: Mon, 29 Feb 2016 14:57:35 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.103 Safari/537.36

Follow-up Comment #1, bug #47302 (project octave):

I think your way of thinking is correct. Unfortunately octave control tool box
does not handle delays very well. If you just keep them as polynomials and do
the math your self then filter still will work.

I had to do this for myself last week.
use conv( p1,p2) to multiply 2 polynomials
and p1+p2 to add them.
and deconv(p1,p2) to divide p1 by p2
HTH


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