On peu aussi utilise cette formule. 1) If MAXTMP is greater than 271.16K, then the liquid equivalent ratio (RATIO) is 12.0 + 2.0*(271.16-MAXTMP) 2) If MAXTMP is less than 271.16K, then the liquid equivalent ratio (RATIO) is 12.0 + (271.16-MAXTMP) E.g: Demain montreal -6 egal 267. Alors il faute prendre le deuxieme. 12+(271-267) =16:1 Ces il fasais -1 egal 272. on prendrais numero un. 12+2X(271-272), 12+-2= 10:1