Newsgroups: comp.ai.fuzzy
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From: Kadir Kavaklioglu <kadir@rosemount.com>
Subject: Re: error and CE
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Ali Khalaf wrote:
> 
> Some fuzzy controllers uses the error e(k) and CE=e(k)-e(k-1)
> others use the error e(k) and CE=(e(k)-e(k-1))/Ts where Ts is the
> sampling time. My question is what is the difference?

No difference, provided that you make a change of variables (x'=Ts*x) in
the CE membership functions.
-- 
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Kadir Kavaklioglu
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