A Social Security number consists of three strings of digits separated by hyphens. Historically, the first was an area number, which relates to the resident's geographic location; the second was a ...
How-To Geek on MSNOpinion
You need to know what the double unary operator (--) does in Excel
It's marginally more efficient: While the difference is negligible, the double-unary operator can be more efficient in ...
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