// JavaScript Document
var T = 11.3 ;
var H = 93 ;
var t = 7.5*T/(237.7 + T);
var et = Math.pow(10,t);
var e = 6.112*et*(H/100);
var humidex = T + (5 / 9) * (e - 10);
var Tm = 20.7 ;
var Hm = 47 ;
var tm = 7.5*Tm/(237.7 + Tm);
var etm = Math.pow(10,tm);
var em = 6.112*etm*(Hm/100);
var humidexmax = Tm + (5 / 9) * (em - 10);
if (humidex < T)
{ humidex = T;
}   if (humidexmax < humidex)
{ humidexmax = humidex;
}
document.write(humidexmax.toFixed(1));