Showing 171 open source projects for "operating systems"

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  • 1
    Precise Calculator
    Precise Calculator has arbitrary precision and can calculate with complex numbers, fractions, vectors and matrices. Has more than 150 mathematical functions and statistical functions and is programmable (if, goto, print, return, for).
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    Downloads: 41 This Week
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  • 2
    4tH compiler

    4tH compiler

    A Forth compiler with a little difference

    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...
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    Downloads: 69 This Week
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  • 3
    CRC RevEng

    CRC RevEng

    Arbitrary-precision CRC calculator and algorithm finder

    CRC RevEng is a portable, arbitrary-precision CRC calculator and algorithm finder. It calculates CRCs using any of the 113 preset algorithms, or a user-specified algorithm to any width. It calculates reversed CRCs to give the bit pattern that produces a desired forward CRC. CRC RevEng also reverse-engineers any CRC algorithm from sufficient correctly formatted message-CRC pairs and optional known parameters. It comprises powerful input interpretation options. Compliant with Ross Williams'...
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    Downloads: 141 This Week
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  • 4
    fHash

    fHash

    A files hash calculator for Windows and macOS.

    An open source files hash calculator for Windows and macOS. * MD5, SHA1, SHA256 and SHA512. * Drag & drop. * Integrated with context menu in Explorer/Finder. * Support Windows 7 and later. * Support macOS 13 and later, with universal binary. * Support Dark Mode. * English and Simplified Chinese UI. The icon "希" is from hash in Chinese "哈希".
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    Downloads: 8 This Week
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  • 5

    Math Expression Evaluator

    Evaluates simple mathematical expressions

    A simple Android app to evaluate mathematical expressions. It can handle variables. Somewhat more useful then a calculator but not sophisticated as mathcad or linux octave. Small app, does not take up much space. The following is an example of the type of input it takes: apple = 3, pear = 7 78 * (apple + pear) the output would be 780
    Downloads: 0 This Week
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  • 6
    antoniovandre_eval - Android app

    antoniovandre_eval - Android app

    Android app interface for antoniovandre_eval software.

    Downloads: 0 This Week
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  • 7
    HCalculator

    HCalculator

    HCalculator - Professional Hydraulic Calculator

    PROFESSIONAL HYDRAULIC CALCULATIONS A reliable engineering application created for designers, mechanics, and machine technicians. Perform precise technical calculations instantly, completely securely, and without ads.
    Downloads: 2 This Week
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  • 8

    calc: C-style arbitrary precision system

    Calc: arbitrary precision C-like arithmetic & calculator

    Calc is arbitrary precision C-like arithmetic system that is a calculator, an algorithm prototyper and mathematical research tool. Calc comes with a rich set of builtin mathematical and programmatic functions.
    Downloads: 3 This Week
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  • 9
    CalcuFp

    CalcuFp

    Programmable Calculator (IP functions, create user functions)

    New version: CalcuFP program is a calculator software (beta version), has a wide range of mathematical functions, specific functions for different subjects (ex.- IPv4 functions), Apart from being able to have on hand an wide range of functions, allows to use different numbering systems WITHOUT CHANGING MODES. We can sum operations decimal, binary and hexadecimal mixed. Example. - 25 + BIN ('111 ') + HEX (' FF ') -> this is equivalent to adding the integer 25 +7 (binary) +255 (hexadecimal)...
    Downloads: 0 This Week
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  • 10
    mhcfs2

    mhcfs2

    engineering programmable calculator

    MhcFS2 - engineering calculator. (v. 1.2 b141) (math expression calculator, scientific calculator, numerical, integral,integration, derivative, root, matrix, differencial, differentiation, equation, LSE,ODE )
    Downloads: 1 This Week
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  • 11
    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: 1 This Week
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  • 12
    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...
    Downloads: 1 This Week
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  • 13
    CalcTech

    CalcTech

    CalcTech: Custom themes and advanced editing for seamless calculations

    CalcTech is the ultimate calculator app designed to blend powerful functionality with deep personalization. Tailored for students, professionals, and math enthusiasts, it goes far beyond basic arithmetic by offering an extensive suite of customizable features. The standout highlight of CalcTech is its advanced Theme Engine. Recognizing that a workspace should be as unique as the user, the app offers a vast array of aesthetic options. Users can choose from sleek dark modes for late-night...
    Downloads: 0 This Week
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  • 14
    Calendar Calc v2.0

    Calendar Calc v2.0

    Date utilities for any calendar task

    CalendarCalc represents a significant leap forward in digital time management and chronological calculation tools, offering a refined and powerful user experience directly on your Windows desktop. Designed to bridge the gaps left by traditional calendar applications, this utility focuses specifically on the mathematics of time, allowing you to instantly solve any query related to durations, intervals, and international holiday occurrences. With an advanced calculation engine and a fluid...
    Downloads: 1 This Week
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  • 15
    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. Since 2014, WP...
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    Downloads: 46 This Week
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  • 16
    Advanced Trigonometry Calculator

    Advanced Trigonometry Calculator

    Precision Trigonometry: Advanced Calculator for Complex Math

    Advanced Trigonometry Calculator is equipped with a user-friendly interface that allows for easy input of problems and instant computation. Professionals such as engineers who need to perform advanced trigonometric calculations in their work will find this tool extremely useful. ATC Online Alpha: https://advantrigoncalc.sourceforge.io/atc/ More info by clicking below: https://advantrigoncalc.sourceforge.io/ Advanced Trigonometry Calculator was only and always only developed by...
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    Downloads: 21 This Week
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  • 17
    bcal

    bcal

    Byte CALculator for storage conversions and calculations

    ...Feel free to raise PRs to simplify other domain-specific numerical calculations so it can evolve into an engineer's utility. bcal follows Ubuntu's standard unit conversion and notation policy. Only 64-bit operating systems are supported.
    Downloads: 0 This Week
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  • 18

    JoseWebApps

    Some humble web applications

    Here I publish some humble web applications that I have developped.
    Downloads: 0 This Week
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  • 19

    rcal

    an interactive "rolling paper" calculator

    rcal is an interactive calculator for DOS, that loosely mimics the behavior of "roller printing" calculators. It supports huge numbers, floating point and has extremely low hardware requirements.
    Downloads: 0 This Week
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  • 20
    Pythagorean-Numerology-Calculator
    "A basic numerology calculator in JavaScript" A live demo is available at: https://pythagorean-numerology-calc.sourceforge.io/pnc.html Features: -Your connection with the 4 classic elements -Numerology chart calculation -Master numbers detection -Psychologic matrix chart calculator -Name calculation chart -Personal day calendar -Plain calculator for names or numbers -Name diagrams (Norman Shine) -Profiles manager -Unlimited number of profiles -Search and sort feature...
    Downloads: 0 This Week
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  • 21

    zero

    Privacy-first offline expense tracker. No cloud. No tracking.

    zero is a privacy-first, fully offline expense tracking app for Android and iOS. Unlike most finance apps, zero does not require accounts, cloud sync, subscriptions, or internet access. All financial data stays locally on your device. There are no ads, no telemetry, and no analytics. zero helps you: • Track daily expenses in a clean timeline • Visualize spending with simple reports • Create unlimited custom categories • Manage lendings and borrowings • Export or delete your data...
    Downloads: 0 This Week
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  • 22
    Simple Calculator

    Simple Calculator

    A calculator for quick simple calculations with a nice user interface

    This stylish modern calculator offers a great user experience that you will love seeing. You can copy the result or formula to the clipboard by long-pressing it. You can also use this calculator as a currency converter to calculate your daily income and other amounts in different countries' currencies. With eye soothing dark theme, it is now easy for you to see buttons and numbers more easily and use this calculator for simple calculations or use it as a currency converter, or as a...
    Downloads: 0 This Week
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  • 23
    Downloads: 0 This Week
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  • 24
    pfcalc is a pipe friction calculator using the Darcy-Weisbach equation. gpfcalc is a Gtk front-end for pfcalc. Qpfcalc is a Qt front-end for pfcalc.
    Downloads: 1 This Week
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  • 25
    Calculator

    Calculator

    Minimal Calculator

    Materialistic minimal Calculator build using Kotlin for Android, with support from Android 7(Nougat) to the latest Android YouTube: https://youtube.com/shorts/FaTfubLK7os Buy Me a Coffee: https://www.buymeacoffee.com/pranjal_barnwal
    Downloads: 5 This Week
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