Formulas are powerful tools for performing calculations and analyzing data in Excel. In this beginner’s guide, you’ll learn how to use formulas and explore some popular built-in functions. One of the ...

In a laboratory in San Francisco, California, a woman named Ann sits in front of a huge screen. On it is an avatar created to look like her. Thanks to a brain–computer interface (BCI), when Ann thinks ...

Back in the early days of the personal computer, there wasn't too much that these machines could do. That changed with the first "killer app," a spreadsheet program intended to harness the computer's ...

A formula is a spreadsheet function entered in a cell, complete with its arguments. They're one of the two or three major applications that first spearheaded the acceptance of the personal computer in ...