Learn how to type or insert the sum (Σ) symbol in Excel to make your spreadsheets cleaner and easier to read. Perfect for ...

REDUCE allows you to iterate through your data, building your result step-by-step, in the same way a loop operates in a programming language. Instead of scattering your intermediate calculations ...

With one episode left before the fall hiatus, Law & Order: SVU finally gave us a powerful story. It was a cautionary tale ...

Leaders who successfully transform businesses do eight things right (and they do them in the right order). by John P. Kotter Over the past decade, I have watched more than 100 companies try to remake ...

Find historical weather by searching for a city, zip code, or airport code. Include a date for which you would like to see weather history. You can select a range of dates in the results on the next ...