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

iOS/Android/Desktop: Default calculator apps suck. They work like a traditional handheld calculator, which only displays one value at a time and can only do basic math. If you want to do anything more ...

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 ...