The Intelligent Calculator app has all of the standard features you would expect from a calculator app plus advanced features necessary to complete more complex problems. The fun starts when you begin building calculations on assumptions of previous values. The app maintains a full historical list of calculations, including labels and favorites. Because of this handy feature, users are able to alter values in the history and the previous calculations will automatically adjust according to the most recent change. Install the app and you'll be greeted with a tutorial that will walk you through the many helpful features of a truly Intelligent Calculator app.