Mike Riendeau wrote: > > > It looks reasonable to me that a fuzzy system would behave more like > > an analog system, because of typically broad band assignments for > > fuzzy variables. > > I think this would be true analogy if the fuzzy system "knew" > ahead of time where the pole-zero singularities of the plant are > and how to compensate for them. Unfortuneately, I suspect, this > & more... Mike: fuzzy logic doesn't "know" anything; it would be more useful to the debate to limit that sort of personification. For that matter, the closed form math doesn't "know" where the poles & zeros are, either, no matter what algorithm you choose to express it. And, most importantly, physical processes don't have poles & zeros, anyway. The poles & zeros are a feature of your mathematical model of the process. There is no reason that I know of to believe that there are no other valid models of physical processes, or to believe that other models might not be as good. -- Tom