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Webszemjankó is an extended calculator tool for both Windows and unix based operation systems (such as linux and freeBsd). Now it supports the main operations but we are working on adding more functions and features.
This tool is specifically for people who play the Online Browser-Based Game, "TribalWars" http://www.tribalwars.net. With this tool, a player can calculate the time required to produce the given resource.
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This project is a GUI or command line interface for converting US measurements to metric. A simple calculator has been added for help with small measurements.
a free cross platform calculator for calculating BIG numbers
BigAl is a free open source and platform independent software for calculating really BIG numbers. It supports not only standard arithmetic, but also exact period determination, predefined factorials, fibonacci with seeds, factorization, nth root, etc
Yet another video ripping calculator, which tries to take into account container format overheads as accurately as possible, for multiple audio and video codecs, and suggest optimum encoding resolutions, with correct aspect ratio calculations.
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Equalculator is an equation calculator. It is currently in the "pre-alpha" stage of development, so don't expect it to do miracles. You type in your equation, it will ask you for the variables and Voila!, it gives you the answer.
prefix is a command line prefix calculator written in python. It supports basic math functions (add, subtract, multiply, divide) as well as some more advanced (exponents, logarithms, etc.)
Console based application which should compile on any system supporting c++. Includes calculations like blood alcohol content, 1/4 mile run, liter conversion, etc.
cl-calc aims to be a simple command line calculator. It can handle precedence unlike a lot of graphical calculators. cl-calc is written in Python and requires PLY (Python-Lex-Yacc).
A simple command to convert calendar dates to julian dates. Quite useful in
timing situations where you need elapsed time between dates.
Also useful for astronomy applications.
REPCAL (REverse Polish CALculator) is a light and fast calculator in RPN (reverse polish notation) mode for the console (command line). It is written in 180 lines of Python code, and can be used both interactively or inside shell scripts.
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 ...
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.