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Re: rlocus
From: |
David Eduardo Gomez Noguera |
Subject: |
Re: rlocus |
Date: |
Fri, 25 Jan 2002 08:21:53 -0600 |
On Fri, 25 Jan 2002 00:29:06 -0500
Torsten Howard <address@hidden> wrote:
Not a straight answer, but run the demo that comes with it:
"sysrepdemo"
( i havent though)
> Hello,
>
> I went and tried to do a simple rlocus this evening, but it wasn't simple.
>
> I'll put a transcipt at the end of the page, how do I make this work?
>
> Torsten
>
>
> ---------------------------------------------------------------------
> octave:1> num = [1];
> octave:2> den = [1 6 11 6];
> octave:3> rlocus(num,den)
> error: Asys must be a system data structure (see ss2sys, tf2sys, zp2sys)
> error: evaluating if command near line 45, column 3
> error: called from `sys2tf' in file
> `/opt/octave/share/octave/2.1.35/m/control/system/sys2tf.m'
> error: called from `rlocus' in file
> `/opt/octave/share/octave/2.1.35/m/control/base/rlocus.m'
> octave:3> help rlocus
> rlocus is the user-defined function from the file
> /opt/octave/share/octave/2.1.35/m/control/base/rlocus.m
>
> - Function File: rlocus (INPUTS)
> [rldata, k] = rlocus(sys[,increment,min_k,max_k])
> Displays root locus plot of the specified SISO system.
>
> ----- --- --------
> --->| + |---|k|---->| SISO |----------->
> ----- --- -------- |
> - ^ |
> |_____________________________|
>
> inputs: sys = system data structure
> min_k, max_k,increment: minimum, maximum values of k and
> the increment used in computing gain values
> Outputs: plots the root locus to the screen.
> rldata: Data points plotted column 1: real values, column 2: imaginary
> values)
> k: gains for real axis break points.
>
>
>
> Additional help for built-in functions, operators, and variables
> is available in the on-line version of the manual. Use the command
> `help -i <topic>' to search the manual index.
>
> Help and information about Octave is also available on the WWW
> at http://www.che.wisc.edu/octave/octave.html and via the
> address@hidden mailing list.
> octave:4> help sys
>
> help: sorry, `sys' is not documented
>
> Additional help for built-in functions, operators, and variables
> is available in the on-line version of the manual. Use the command
> `help -i <topic>' to search the manual index.
>
> Help and information about Octave is also available on the WWW
> at http://www.che.wisc.edu/octave/octave.html and via the
> address@hidden mailing list.
> octave:5>
>
>
>
> -------------------------------------------------------------
> Octave is freely available under the terms of the GNU GPL.
>
> Octave's home on the web: http://www.octave.org
> How to fund new projects: http://www.octave.org/funding.html
> Subscription information: http://www.octave.org/archive.html
> -------------------------------------------------------------
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-------------------------------------------------------------
- rlocus, Torsten Howard, 2002/01/25
- rlocus, John W. Eaton, 2002/01/25
- Re: rlocus,
David Eduardo Gomez Noguera <=