Showing 659 open source projects for "calculators"

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  • 1
    CEmu emulator

    CEmu emulator

    Third-party TI-84 Plus CE / TI-83 Premium CE emulator

    Developer-oriented emulator of the eZ80-based TI-84 Plus CE / TI-83 Premium CE calculators. CEmu is a third-party TI-84 Plus CE / TI-83 Premium CE calculator emulator, focused on developer features. The core is programmed in C and the GUI in C++ with Qt, for performance and portability reasons. CEmu works natively on Windows, macOS, and Linux! Easy setup - get running by doing a one-time-only connection of your calculator!
    Downloads: 14 This Week
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  • 2
    Numi

    Numi

    Beautiful calculator app for macOS

    Numi is a handy calculator app for macOS. It allows you to describe tasks naturally and instantly get an answer. For example, $20 in euro - 5% discount or today + 2 weeks.
    Downloads: 2 This Week
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  • 3
    Nano ID

    Nano ID

    A secure, URL-friendly, unique string ID generator for JavaScript

    Nano ID is a library for generating random IDs. Likewise UUID, there is a probability of duplicate IDs. However, this probability is extremely small. Meanwhile, a lot of projects generate IDs in small numbers. For those projects, the ID length could be reduced without risk. This calculator aims to help you realize the extent to which the ID length can be reduced. Instead of using the unsafe Math.random(), Nano ID uses the crypto module in Node.js and the Web Crypto API in browsers. These...
    Downloads: 3 This Week
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  • 4
    WP 34s

    WP 34s

    Scientific/engineering firmware repurposing HP business calculators!

    This project has created scientific firmware for the HP-20b and HP-30b business calculators. WP 34S turns either of these calculators into a powerful keystroke programmable scientific device. According to our customers, it's the most powerful and fastest RPN scientific pocket calculator ever built. WP 34S is alive and stable since 2011. We have succeeded in satisfying the most picky users - read about their experiences on http://www.hpmuseum.org/forum/forum-8.html. ...
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    Downloads: 47 This Week
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  • 5
    RPNCalc

    RPNCalc

    RPNCalc - The command line Reverse Polish Notation (RPN) Calculator

    RPNCalc is the command-line based Reverse Polish Notation (RPN) calculator. RPN calculators make it very simple to do complex calculations, especially if there are parentheses involved. I've created a User Guide (https://frossm.github.io/RPNCalc-UserGuide) to do a better job of explaining how to use RPNCalc than the old readme.md file, which was getting really long. If you have questions, issues, feedback, or ideas, please let me know.
    Downloads: 18 This Week
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  • 6
    Calculator-Scripts

    Calculator-Scripts

    Just a few scripts for pocket calculators.

    Just a few applications for various pocket calculators.
    Downloads: 29 This Week
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  • 7
    Open Tax Solver

    Open Tax Solver

    Calculates income tax form entries, helps do your taxes.

    OTS is a safe, secure, easy-to-use program for calculating Tax Return Form entries, and determining your tax-owed or refund-due, for Federal or State personal income taxes. Includes updated versions for US 1040, Schedules A, B, C, D, and for several states. OTS provides both graphical and textual interfaces for quickly filing out your tax forms. --- Best way to download the correct version for your platform -- go to the OTS WEBSITE: =====> ...
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    Downloads: 146 This Week
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  • 8

    sccalculator

    Scientific calculator and plotter on c++, java and javascript

    Scientific calculator is calculator which is realized on c++, java and javascript. In addition there is estimator of string expressions which can be useful for other projects.
    Downloads: 1 This Week
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  • 9
    Calcoo is a scientific calculator (with both RPN and algebraic modes) designed to provide maximum usability.
    Downloads: 11 This Week
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  • 10
    Downloads: 0 This Week
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  • 11
    PeaZip

    PeaZip

    Free Zip software and Rar extractor

    PeaZip is a free archiver tool. The application provides an unified, natively portable, cross-platform file manager and archive manager GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX. Create: 7Z, ARC, Brotl, BZip, GZip, PEA, TAR, WIM, XZ, ZPAQ, ZIP, Zstandard files and more Open and extract 200+ file types: ACE, CAB, DEB, ISO, RAR, ZIPX and more Features of PeaZip includes extract, create and convert multiple archives at once, create self-extracting archives...
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    Downloads: 1,314 This Week
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  • 12
    Wcalc

    Wcalc

    A powerful arbitrary-precision calculator.

    Wcalc is a powerful arbitrary-precision calculator. It has standard functions (sin, asinh, logtwo, floor, etc), many pre-defined constants (pi, e, c, etc.), variables, "active" variables, command history, and hex/octal/binary i/o, conversions, and more
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    Downloads: 17 This Week
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  • 13
    Percent-age Calculator
    A calculator program that includes three types of calculators: a standard calculator, a percentage calculator, and an age calculator.
    Downloads: 1 This Week
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  • 14
    Eleweb

    Eleweb

    Alternate current Calculations

    ASP.NET AJAX application for calculate values in alternate current. Not use Database, is stand alone application. It's written for create multiple calculations in alternate current. Check for Demo http://aspsource.org/eleweben
    Downloads: 1 This Week
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  • 15
    Tarikh

    Tarikh

    Convert solar date to Gregorian and vice versa

    Tarikh component is prepared to convert solar date to Gregorian and vice versa and is able to provide the most accurate result in date conversion. Delphi Version (12)
    Downloads: 0 This Week
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  • 16
    teemIP - CMDB & DDI solution

    teemIP - CMDB & DDI solution

    teemIP : Open source IPAM & DDI solution with CMDB integration.

    teemIP is an open source, web-based IP Address Management (IPAM) and DDI solution built on the iTop framework. It provides comprehensive IP management: IPv4/IPv6 plan management, subnet hierarchy, IP lifecycle, VLAN and DNS/DHCP integration. teemIP is now maintained by the teemIP SAS founding team: Christophe Naud (original creator), Martin de Laval and Quentin Ville. The company is being officially incorporated in July 2026. The project remains open source under AGPL...
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    Downloads: 240 This Week
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  • 17
    Giacenze Crypto

    Giacenze Crypto

    Programma per il calcolo delle plusvalenze Cripto + analisi CSV CDC

    Il programma permette di calcolare le plusvalenze (calcolate attraverso il metodo del LIFO) derivanti dagli scambi di criptovalute un po' su tutte le piattaforme e sulla Defi, inoltre per gli utenti di Crypto.com c’è anche la possibilità di calcolare saldo e giacenza media della Carta Visa e del Fiat Wallet. Le istruzioni sul funzionamento sono reperibili qua : https://sourceforge.net/p/giacenze-crypto-com/wiki/ISTRUZIONI/ e qua :...
    Downloads: 17 This Week
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  • 18
    BoolFund

    BoolFund

    Funds have risks, and investments must be made cautiously.

    A powerful fund analysis and management system software. It integrates multiple functions such as fund information, fund market data, fund analysis, fund management, and fund forecasting, maximizing the solution to problems investors face in choosing funds and managing returns.
    Downloads: 1 This Week
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  • 19
    Differential Calculator

    Differential Calculator

    Terminal calculator with differential error estimates

    This is a terminal calculator with a remarkable twist. It uses symbolic differentiation to provide a numerically precise error estimate with each calculated answer. It mimics the functionality of an HewlettPackard ReversePolishNotation [RPN] calculator simply because I like RPN. But along with your answer, you get some measure of its trustworthiness. Runs on PCs or laptops running Windows or Linux.
    Downloads: 0 This Week
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  • 20

    discorddate

    Generate Discordian Dates

    Hail Eris! What better way to show your devotion to the Goddess of Chaos and Discord herself than to show the Discordian Date wherever and whenever you would show a mundane date?
    Downloads: 0 This Week
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  • 21
    kgcalc

    kgcalc

    Desktop Calculator for Linux using Kulina Graphics

    A desktop calculator for Linux. Originally 'kgcalc' was developed as a demo program for Kulina Graphics Library and 'kgdevelop' (https://www.sourceforge.net/projects/kulinagraphics). But it was felt it may have a wider interest and hence this project. May be its extra feature is its editable view of the calculating expression and ability to recover previous calculations. Kulina Graphics Library uses GraphicsMagick for its image processing and depends on GaphickMagick and its dependencies....
    Downloads: 0 This Week
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  • 22
    IntervalRpnCalculator

    IntervalRpnCalculator

    An HP RPN calculator with interval output

    This terminal app runs on PCs or laptops running OSX or GNU/Linux. It attempts to mimic the functionality of an HP ReversePolishNotation [RPN] calculator with the added enhancement of interval output. So along with your answer, you get a good idea of its trustworthiness. This app uses GAOL, a C++ library to perform arithmetic with floating-point intervals.
    Downloads: 0 This Week
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  • 23
    TRURL

    TRURL

    A suite of RPN calculators and a class library for Object Pascal

    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 B: RPN calculator in the design of the famous calculators by Dieter Rahms for Braun • TRURL G: Desktop RPN calculator inspired by the UI of the DSKY unit of the Apollo Guidance Computer (AGC)
    Downloads: 1 This Week
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  • 24

    Time Boxing FX

    TimeBoxing FX: Your productivity at your fingertips 🚀

    TimeBoxing is the ultimate app for optimizing your time management, developed with the robustness and fluidity of JavaFX. Focus on your tasks with the customizable TimeBoxing timer: easily set the number of rounds, work duration, and break duration. Distinctive sounds will alert you to the start and end of each interval, allowing you to maintain focus without distractions. But it doesn't stop there. TimeBoxing also includes an additional countdown and timer, both with audible alerts, to...
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    Downloads: 0 This Week
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  • 25
    OptionMatrix

    OptionMatrix

    Financial Derivatives Calculator with 171+ Models (Options Calculator)

    A real-time financial derivatives calculator supporting 171+ models from QuantLib, Financial Numerical Recipes in C++ and MetaOptions. Matrices of prices are created with iterating strikes and/or months. A strike control system can produce any strike. A generalized date engine can calculate re-occuring distances to any industry used expiration into the future. Spread engine with spread views. Models Supported: Black-Scholes, Merton-73, Black-76, Roll Geske Whaley, Garman KohlHagen, Jump...
    Downloads: 4 This Week
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