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Can calculate mathematical expression. It have a module system witch make it very easy to add own functions. Other features are a graph painter and a tiny programming language designed too make it easy too write small mathematical tools.
Mini-Calc is a very lightweight and easy to use calculator run in the console. It delivers everything you can expect from basic calculators, with more features added every major release.
Car Mileage Calculator is designed for the Sharp Zaurus SL-5500 Linux PDA. It will track and store your cars gas mileage. It will display the gas mileage after each fillup and your lifetime gas mileage. It is free and GPL.
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X-Bc (formerly: xbc) is a graphical user interface to the command line calculator bc. All Inputs and Outputs stays visible for editing and comparing. Functionality: trigonometry, number-theory, exponential funcs, scientific constants, primenumbers ...
TitanGS Itself is not a game, but a combat calculator. The game consists of printable game pieces. In the future it will all be on computer. The pieces come bundled here on sourceforge. TitanGS is not yet "Fun", but it is getting there.
Video bitrate calculator to provide quick calculation of bitrates for multimedia files for optimizing quality and filesize. PHP and X11/QT versions available.
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ReHash is an easy-to-use console-based hash calculation tool written in C++. It supports many algorithms and output formats and it can be fully configured using some of the many command-line arguments which can be passed to the tool.
It basically creates graphical representations for the functions you introduce.
Current STABLE branch only includes win32 version.
The DEVEL branch includes also a GTK version.
Patches are welcome.
A linux calculator which maintains the option of the simple text-based experience of bc while adding features like function declaration, registers, and a gtk+2.0 GUI. There are many predefined functions and constants. Graphing is one of many future plans.
The Fung-Calc is an advanced, yet easy to use graphing calculator that supports graphing in both 2D and 3D. Several different plot types are available and graphs can be animated.
Virtual TI emulates nearly the entire line of Texas Instruments graphing calculators, and offers features that speed up both debugging and testing of calculator programs. Windows version is quite stable but the Linux/OSX version is only in planning.
MultiCalc is a multifunction, multiplatform, open-source calculator programmed in C++. This program is currently in version 0.1. Any suggestions are welcome, e-mail me at codeyoddler@msn.com.
Baculator is a Reverse Polish Notation (RPN) calculator program with an infinite scrollable stack and support for most common mathematical operations as well as some more esoteric operations. Available for Unix/Gtk+, Mac OS X, and MS Windows.
Kalculate provides a user-friendly calculator for the average desktop user. Its focus is to develop features that make it friendly and usable instead of features that provide advanced mathematics.
Crystal Math is a symbolic math suite. While it can be used as a simple calculator, it also has a powerful equation based subsystem which lends itself well to such task as symbolic differentiation. Developers Needed!
Rascal, the Advanced Scientific CALculator, is a platform independent modular calculator. Based on modules for integer, doubles, strings, vectors and matrices it can be easily extended with existing C or C++ code.
QPlot - an Advanced Mathematical Calculator
Includes: natural-style input, 2-D and 3-D graphing,
differentiating, integrating, equation solving, C-like
PROGRAMMING, and a lot more!
What's most exciting, it is EXTENSIBLE!
KPNClac is a polish notation calculator intended to inspired by the HP48 Series calculators. It handles complex numbers and will someday handle matricies. The next current development version allows user programmable functions via python.