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A sneeze. Ocean currents. Smoke. What do these have in common? They're instances of turbulence: unpredictable, chaotic, ...
HowToGeek on MSN23h
The 3 Best Logical Functions I Always Use in Excel - MSNISNUMBER: Tests whether a is a number, including a number produced through a formula. ISEVEN or ISODD: Tests whether a is an ...
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