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Which is the bigger version number? Version 9.9 or version 9.11? Which is the bigger dollar amount? $9.9 or $9.11?

Periods are not always used for the decimal separator but also as a separator for multiple sets of semi-independent numbers.



I have never seen someone write $9.09 as $9.9. What country is this common in?


None. That is the point. 9.9 can be both bigger or smaller than 9.11 depending on context


if someone says "which is the bigger number" with no context you wont assume software version number, lets be real here

also $9.9 is clearly 9 dollars and 90 cents.




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