Until today, the iPhone’s calculator mimicked the buttons of its forebears: If you keyed in 48.375, for instance, instead of 43.875, tapping “C” within your app would zero out your entry so ...

This image shows a new backspace button on the iPhone Calculator app in iOS 18 Credit: Apple. Soon, Apple will release the iOS 18 update – likely in September.

Google search has long featured a built-in calculator function but a recent update added a fully functional 34-button scientific calculator. Previously, when a user entered, say, 2+2, ...