Open Source BSD RPN Calculators

4tH is a Forth compiler with a little difference. Instead of the standard Forth engine it features a conventional compiler. 4tH is a very small compiler that can create bytecode, C-embeddable bytecode, standalone executables, but also works fine as a scripting language. It supports about 95% of the ANS Forth CORE wordset and features conditional compilation, pipes, files, assertions, forward declarations, enumerations, structures, suspended execution, recursion, include files, etc. It comes with an RPN calculator, BASIC interpreter, line editor, preprocessor, compiler, decompiler, C-source generator, a virtual machine, and a multitasking environment.

Calcoo is a scientific calculator (with both RPN and algebraic modes) designed to provide maximum usability.

galculator is a GTK 2 / GTK 3 based scientific calculator supporting algebraic mode as well as RPN. Features include arithmetic precedence handling, mathematical functions, different number bases (DEC, HEX, BIN, OCT) and angle bases (radiant, degree, and grad). Please note: This project page at sf.net reflects the state of the project up to August 2015. Beginning in September 2015, the project homepage was moved to http://galculator.mnim.org, with the source code repositories and issue trackers hosted at https://github.com/galculator/galculator.

TRURL is a suite of desktop calculators with reverse Polish notation (RPN) written in Object Pascal. Additionally, it comes with a free reusable class library (RPN Engine) as a toolbox for creating your own calculator. TRURL is an acronym for "TRURL is a Reusable Universal RPN Library". Class Libraries: • RPN Engine: Full-featured calculation engine for Pascal-based RPN calculators • Segmitator: Library for virtual seven-segment displays Applications: • TRURL A: Simple demo app for the RPN Engine • TRURL G: Desktop RPN calculator inspired by the UI of the DSKY unit of the Apollo Guidance Computer (AGC)

My goal is to develop an almost true copy of the HP 32II Calculator. This includes equation solving and integrating and keycode programming.

An RPN calculator design to manage well with stdin stream of number and operations

Programmable RPN and Algebric calculator. Written with Kylix3 OpenEdition for Linux. Mathematic - Trigonometric - Calendar - Financial functions. Very easy to use. Italian and English language. More details on my home page: http://mcz.altervista.org

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.

"Caltos" ( french slang word for calculator ) is a command-line RPN ( reverse polish notation ) calculator, using ncurses.

Calx is a calculator program based on RPN (Reverse-Polish Notation) that allows you to compute complex mathematical expressions containing brackets, mathematical functions etc.

HPN is a functional - as opposed to microcode - cross-platform emulation of a classic 1970s Hewlett-Packard scientific calculator for any command-line interface. Its operations completely model the historical and groundbreaking HP-35 series, and functions to support the HP-45 and the later HP-65, 67 and HP-15C are in the pipeline.

An RPN calculator in Java with a minimalistic interface, designed to be stylish, complete and useful.

A slim desktop calculator using RPN for easy, fast, and accurate computations. Suited for engineers and scientists. Knows a lot of numbers ;) Written in simple C++ using FLTK. Runs on Linux and Windows.

An open source RPN calculator written in C

PG Calculator is a powerfull scientific calculator and an excellent replacement for standard calculator. It ofers full customizable user inteface and looks like real calculator on user desktop. PG Calculator works in Algebraic and RPN mode.

Polishcalc is a simple RPN calculator. It is very small and useful.

A programmable RPN calculator for various PDAs. It features a programming language that resembles the original RPL found in HP48, along with other \"standard\" features such as matrices, complex numbers, binary arithmetic etc.

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.

Reverse Polish Notation interpreter for use as an interactive calculator in conjunction with the standard Python interactive interpreter. Easily extended by the user.

Shellcalc (sc) is a lightweight and versatile reverse polish notation (RPN) calculator for the command-line. It implements access to the basic operations and many functions from the glibc math library.

Wurp is an RPN (Reverse Polish Notation) calculator, similar to the HP48 calculator. Wurp supports various platforms, including KDE and curses (and hopefully Windows eventually).

GTK based RPN calculator for Linux/Unix. Currently under development, but supports Real Numbers, Complex Numbers, Matrices, and Vectors

GRPN is a graphical reverse polish notation (RPN) calculator. GRPN is written in C and uses the GIMP Toolkit (GTK) for the GUI.

kalc is a programmable scientific calculator, using RPN (Reverse Polish Notation). Its behaviour imitates a HP48/HP49 calculator. Works with real and complex numbers, unlimited size integers, arbitrary-precision real numbers and more.

Small RPN (HP48 style) calculator, working in text mode, in interactive way (with GNU Readline) or automic way (from a pipe)