Re: dumb question: what is the antonym of "memoryless"?

On 29 Apr 2006 12:03:35 -0700, "robert bristow-johnson"
<rbj@xxxxxxxxxxxxxxxxxxxx> wrote:

causal vs. acausal

I often use "non-causal" or "anticipatory" for systems that extend in
both directions from zero, "anticausal" for systems that start at
-infinity and stop at zero.

recursive vs. nonrecursive

Autoregressive vs. Moving-Average?

minimum phase vs. nonminimum phase

Don't forget maximum phase.

FIR vs. IIR (this concept can be generalized to systems that
are nonlinear and/or time-variant, but we wouldn't
be calling them "FIR" or "IIR". what would we call
such a property for non LTI systems?
"infinitely retentive" vs. "finite retentive"?

Infinite memory vs. finite memory?

it is not precisely the same as "recursive" vs.
"nonrecursive" since there are recursive systems that
have finite retention.)

would "single input/output" vs. "multiple intput/output" be a system
property that is a dichotomy?

In the controls world aren't multiple input/output systems called
"multivariate"?

Greg
.