Hi AZR,
You are right AZR : it is not "alphamax" but "ALPHAFLOOR". I discovered my mistakes when I was far from internet connection, and thought Dozy would not miss the target !
You were the first !
Thank you for immediate correction to avoid some wrong idea development.
"tout calcul non vérifié est à-peu-
près certainement faux" (Kaufman)... it is the same with the posts...