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Re: margin file test in matlab


From: Dr. Wolfgang Lindner
Subject: Re: margin file test in matlab
Date: Fri, 9 Oct 2015 10:19:50 +0200

EDU» d=poly([-1+2.0j,  -1-2.0j  ,-1,-.7])
 n=60
 sys1=tf(n,d)
 margin(sys1)

d =

    1.0000    3.7000    9.1000    9.9000    3.5000


n =

    60


Transfer function:
                 60
-------------------------------------
s^4 + 3.7 s^3 + 9.1 s^2 + 9.9 s + 3.5

Warning: Closed loop is unstable.
> In C:address@hidden (GetMargins) at 
> line 122
  In C:address@hidden at line 66
EDU»

Please find files attached.
Be warned: it is my (very) old student version - I'm retired ;)

beste Gruesse
Wolfgang
- - -
Dr. Wolfgang Lindner
Leichlingen, Germany


----- Original Message ----- 
From: "Doug Stewart" <address@hidden>
To: "Ron.Simonson" <address@hidden>
Cc: "Help GNU Octave" <address@hidden>
Sent: Friday, October 09, 2015 12:01 AM
Subject: Re: margin file test in matlab


| On Thu, Oct 8, 2015 at 5:58 PM, Ron.Simonson <address@hidden>
| wrote:
|
| > On 10/08/2015 01:54 PM, Doug Stewart wrote:
| >
| >> d=poly([-1+2.0j,  -1-2.0j  ,-1,-.7])
| >
| >   n=60
| >>   sys1=tf(n,d)
| >>   margin(sys1)
| >>
| >
| > Good afternoon Doug,  Here is what I see with
| > Version R2012b
| >
| > \begin{matlab_R2012b_results}
| > >> dastest
| >
| > d =
| >
| >     1.0000    3.7000    9.1000    9.9000    3.5000
| >
| >
| > n =
| >
| >     60
| >
| >
| > sys1 =
| >
| >                    60
| >   -------------------------------------
| >   s^4 + 3.7 s^3 + 9.1 s^2 + 9.9 s + 3.5
| >
| > Continuous-time transfer function.
| >
| > >>
| > \end{matlab_R2012b_results}
| >
|
| thanks Ron
|
| doug
|
| -- 
| DAS[image: Certificate for 206392]
|
| <https://linuxcounter.net/user/206392.html>
|


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