"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you or your kids are preparing for an advanced math or science course, you’re going to need a graphing ...

Doing a bit of quick adding-up in the iPhone calculator app? Or are you in the middle of a complex series of calculations better suited to a spreadsheet, but you used the Calculator anyway? A mis-hit ...

There are a lot of hidden little tricks and tips for all of the native apps on the iPhone, including the Calculator app. If you're typing in numbers and make an accidental mistake, you don't need to ...