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

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 ...

My geometry students always ask me if they can use their calculators. Always. You'd think by now they would know that the answer is going to be no. They think that because I'm a big geek I must want ...