Qtopia/Calculator Specification

The calculator allows flexible numerical calculations through plugins.

The calculator allows numerical calculations. User-defined types, functions and interfaces are provided through a plugin interface. Many components are supplied with the library, including integer, double and fraction data types, basic operations, and common calculator user-interface elements.

Use Cases

·         Scientist

A scientist uses his Qtopia device’s calculator to carry out complex trigonometric calculations for finding out the surface area of a crystal that is a part of his research project.

·         Shopper

A shopper adds prices in the supermarket as she puts goods into her trolley, in order to keep track of the running total. When she has finished choosing goods, she calculates tax due on the total.

·         Student

A student uses an emulated TI interface that he is familiar with to solve fractional problems.

·         Engineer

An engineer writes a plugin to help him calculate stresses on a bridge he is designing. The interface is customised to suit the typical functions he needs to access.

·         Familiar

User throws away his old dedicated calculator, and uses the Qtopia calculator without having to learn anything new. He even uses his fingers poking at the device's touchscreen rather than a stylus.

Features

Prerequisites

None. -->Mostly Recently used Plugin
  • Unary Operations
  • Trigonometric operations
  • Braces
  • Error Message
  • Prerequisites

    None