For many of us, a calculator is something we run as an app on our mobile phones. Even the feature phones of a couple of decades ago bundled some form of calculator, so that particular task has ...

The calculator’s “C” button—the one that clears input—was gone. The “C” itself had been cleared. The “C” button’s function is vestigial. Back when calculators were commercialized, starting in the ...

In an age when a smartphone or an AI voice assistant can provide the answer to nearly any math-related query, it’s fascinating to imagine using a hand-held calculator built from… Read More ...

The Curta calculator, invented by Curt Herzstark during his imprisonment in a Nazi concentration camp. (Photo courtesy of ...

We’ve all got calculators on our phones, in our web browsers, and even in the home “assistant” that’s listening in on your conversations all day on the off chance you blurt out a math ...

But let's say you are a taxi driver who encounters passengers who sometimes have trouble working out their taxi fare and the change they are owed. This would be the most practical way of using a car ...