Steven Schveighoffer wrote: > I don't think such a series is definable with Andrei's template. I think > his series template is only usable in situations where computing a[n] > depends only on n and the elements a[n-X]..a[n-1], where X is a constant. > > I'm not really a mathemetician, so I don't know the technical term for the > differences, I'm sure there is one.
Time-invariant, or shift-invariant.
