Infinity
-Infinity
opD = 0 , onD = 0 op = 0 , on = 0 , infp = Infinity , infn = -Infinity , infpD = Infinity , infnD = -Infinity
Math.max(+0.0, -0.0) 0
Check (1 / Math.max(+0.0, -0.0) < 0)  - false 
done
Infinity
Infinity
Infinity
-Infinity
undefined
undefined
NaN
1