Apple's Calculator app does more than help you calculate tips. With the latest OSes, it launches on iPad and lets you create a Math Note for more complex problems, among other things. Lance is an ...

Learn how to enable the Scientific Calculator and use Math Notes on your iPhone, and breeze through Math equations with ease.

The calculator on your Apple devices can do more than add, subtract, multiply and divide. Here's how it can help you with all ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Have you ever tried typing a complex ...

Americans are lacking in confidence when it comes to math. Restaurants now print the suggested tip on receipts because so many customers struggle to calculate it — an exercise that draws on 4th ...

The compression ratio isn't just a number: it's one of the greatest determining factors in engine building. Compression ratio determines the type of fuel, how much boost, and has a significant ...