With Mathematica 11.1 and Windows 7 I don't see any jitter at any magnification. Nor with extremely fast or slow animation rates.

The site is flaky. Sometimes it takes time until posts appear.

I see no jitter in any version on a Mac, regardless of magnification. But the front end is known to have some annoying pixel rounding issues, so I am not surprised.

Thanks.

Look up ListAnimate

Thanks, that's better than what I was doing, but still causes jitter here.

The jitter would be an issue if you export the animation to show to others. Is it still there in that case?

No jitter when I export the Table of Plots to an AVI file. These plots are just for me to look at on my screen though. The jitter isn't a huge deal, but it's still disturbing, and there doesn't seem to be any good reason why it's occurring.

Set an explicit numerical PlotRange (not Full or Automatic), and see if it fixes the issue.

That seems to have fixed it. (I still see jitter, but I think it's imaginary jitter due to my head getting messed up from staring at real jitter for the past day. When I concentrate hard, though, it looks like there's no real jitter now.)

So this is how I changed it:

Module[{tableOfExamples = 
   Table[Plot[E^(-Pi x^2), {x, -Pi, +Pi}, 
     PlotRange -> {{-Pi, +Pi}, {-1.2, +1.2}}, ImageSize -> 270], 32]},
  Animate[tableOfExamples[[k]], {k, 1, Length[tableOfExamples], 1}]]

or better yet, with ListAnimate.

Grateful for the solution, but now concerned by Mathematica's non-constant treatment of Pi. (Is there jitter in some other expressions involving an approximated numerical value of Pi?) And why is PlotRange -> {Full, {-1.2, +1.2} yielding sub-optimal results?