Say your goodbyes to AOL dial-up, Skype, Windows 10, and a host of other tech gadgets and services that powered down and ...

Warren Buffett's famous quote about being "approximately right" reveals why obsessing over precise forecasts and complex models often leads investors astray—and what to do instead.

The fix for the disposable formula habit in Excel is already on your screen. At the very bottom of your Excel window is a ...

It's marginally more efficient: While the difference is negligible, the double-unary operator can be more efficient in extremely large workbooks. When you use *1 or +0, Excel must process this as a ...