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Re: Error exploring a Matlab example

From: jmb
Subject: Re: Error exploring a Matlab example
Date: Tue, 21 Oct 2014 19:35:37 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.2

On 10/21/2014 07:16 PM, vathomas wrote:
> Hi JMB,
> Pade function is not implemented, but you can do the approximation yourself.
> There are tables on the internet providing the coefficients, for example
> here:
> Another way is to use the "pade" function from the development branch of
> control package:
> Please be advised, calling the function with an LTI (like ss, or tf) as
> input argument, will error out for sure. But using the function as:
>>> [num, den] = pade(theta, N)
>>> Gp = tf(num,den)/(1+tau*s)
> where N is the order of the approximation, should do the job.
> Also if you want how good the approximation is just type
>>> pade(theta, N)
> and a comparison plot should appear.
> Best,
> Thomas
> --
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Hello Thomas,

Wow, I am impressed by your response!  I have a lot of reading to do,
but your help is extremely useful!  Thanks a bunch.  I will experiment
with it...

Regards! JMB

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