The basic Calculator app that comes with iOS is good for simple calculations, and if you rotate your phone into landscape orientation, it even provides some rudimentary scientific-calculator functions ...

Which scientific calculator is best? Scientific calculators are ideal for complex problem-solving as well as basic arithmetic operations. Students frequently use one in math, science, engineering and ...

Believe it or not, Apple still does not support the iPad with its basic Calculator app. And as much as nerds love their calculator watches, there’s no support for Apple Watch, either. If you want ...