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Re: control package, odd behavior multiplying tf's
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From: |
Nicholas Jankowski |
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Subject: |
Re: control package, odd behavior multiplying tf's |
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Date: |
Sat, 13 Jun 2015 00:11:21 -0400 |
>
> I confirm your results.
>
> I also tried a SISO system
>
> a3=tf( [2 24],[1 4 7] )
> a4=a3*a3
> a5=a3*a4
> a6=a4*a3
> but this worked correctly.
>
> a simpler example of your equation is:
> a1 = tf({[2 24],[12];[1 48 0],[2 24]},{[-1 24],[-1 24];[-4 96],[-1 24]});
> a2=a1*a1;
> a3=a2*a1
> a4=a1*a2
>
>
>
> --
> DAS
>
Thanks Doug. So, bug? Or some expected behavior I do not fathom yet?