How does the advanced omega 2 handle the index #s?

#1
How does the advanced omega 2 handle the index #s?
Are theses numbers rounded and if so how?
Examples:

15 vs 10 you should surrender at 0 or more, what if the tc is -.2 do you hit or round this number up to zero and surrender?

16 vs 9 says to stand at tc +7 or more. What if the tc is +6.7? is this rounded up to 7 and stand or should the hand be hit?

12 vs 6 says hit at tc -6 or lower. what if the tc is -5.9? do you hit the hand or is that number rounded down to tc -5?
Thanks.
 
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