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- NumberParser (Java)
- NumberParser simplifies the usage of numeric types and extends the default mathematical support in Java. It is the second part of FlexibleParser. This Java version is a conversion of the code which I originally developed in C#.
- OpenCalc ,
- OpenCalc is terminal based open-source calculator.
- OptionMatrix
- These calculators are real-time multi-model option chain pricers with analytics and interactive controls. optionmatrix is the GTK+ graphical user interface version and optionmatrix_console is the Curses version. Both programs feature: greeks, decimal date to real-date translations, real-date to decimal date translations, real-time time bleeding, configurable option expiration date engines, calendars, strike control systems, tickers and over 168+ option models. optionmatrix also supports: spreads, bonds, term structures, cash flow editing, source code viewing and text exporting.
- Pasteque
- Pastèque (watermelon) is a Point Of Sale software suite that enables
shopkeepers to achieve their sales efficiently. Pastèque is composed with 3 softwares :
- Pastèque Server
- Pastèque Desktop
- Pastèque Android
- Python
- Python is an high-level programming and scripting language. Some of its key distinguishing features include: clear, readable syntax; strong introspection capabilities; intuitive object orientation; natural expression of procedural code; full modularity, supporting hierarchical packages; exception-based error handling; and very high-level dynamic data types.
- Shell-calc
- A simple command line calculator for Unix-like shells. It supports everything C++ does. In fact, it just creates a C++ program, compiles it, runs it, and deletes it. Therefore, this calculator requires C++ to be installed.
- SpeedCrunch
- SpeedCrunch is a fast and compact calculator. It is designed to be controlled using the keyboard. There is support for a few built-in functions (with an autocomplete feature) as well as variables. The result is shown in a scrollable window, and a history of expressions is available with up and down arrows.
- Units
- GNU Units is a unit conversion tool designed to help simplify the process of converting between different systems of units. The program converts quantities expressed in various systems of measurement to their equivalents in other systems of measurement. Like many similar programs, the units program can handle multiplicative scale changes. It can also handle nonlinear conversions such as Fahrenheit to Celsius, and it can perform conversions to and from sums of units, such as converting between feet plus inches and meters. Beyond simple unit conversions, units can be used as a general-purpose scientific calculator that keeps track of units in its calculations. You can form arbitrary complex mathematical expressions of dimensions including sums, products, quotients, powers, and even roots of dimensions. Thus you can ensure accuracy and dimensional consistency when working with long expressions that involve many different units that may combine in complex ways. The units are defined in an extensive, well annotated data file that defines over 2500 units. You can also provide your own file to supplement or replace the standard file.
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