For novices, functions are one of the most intimidating features of OpenOffice.org's Calc. Newcomers quickly learn that functions are a main feature of spreadsheets, but there are almost four hundred, ...

Which inverse function calculator is best? If you’re taking a math course in which you’re studying inverse functions, you’ll likely be required to graph functions and their inverses in many ways. An ...

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 ...