Talk:Recursive filter

Quick question -- when this says S(X), does it actually mean S(t)? (Same in the Lexicon.) Apple Bottom (talk) 09:36, 28 February 2018 (UTC)

Yes, I think that's a combination of calcyman's and other people's terminology that slipped through. Let's try using S(t) and see if anybody complains. Dvgrn (talk) 11:48, 28 February 2018 (UTC)