USA Today is a national American daily newspaper published by the Gannett Company. It was founded by Al Neuharth in 1982. [ The newspaper vies with The Wall Street Journal for the position of having the widest circulation of any newspaper in the United States, something it previously held since 2003. ]

The domain of a function is the set of all possible input values (often the "x" variable), which produce a valid output from a particular function; the set of all real numbers for which a function is mathematically defined.

Added 5/1/2014 5:26:04 AM

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WINDOWPANE is the live-streaming social network that turns your phone into a live broadcast camera for streaming to friends, family, followers, or everyone. Share what’s outside your window and all around you. Earn a little too.

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