X-Bc is desktop calculator that provides lots of functionality for scientific working. Input and output stay visble at all time for correction and comparation. It's a frontend to bc.
Collection of free web based calculators for many subject areas.
Small, open source (free), scientific and engineering, JavaScript-programmable calculators.
2D and 3D graphing calculator for Linux with multiple graphing modes.
An online graphing calculator Java applet.
Programmable arbitrary precision RPN calculator. Zip file, download will start immediately.
A user-oriented software package that allows non-programmers the opportunity to explore the computational power of their computer. Free trial download.
Scientific calculator with many features including Paper Trail. Windows32. Free trial download.
Guide on how to create a simple command-line calculator for the tcsh, bash and zsh shells.
A scientific calculator with full customizable user interface. Aalgebraic and RPN mode. Windows; shareware trial version.
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