Open Source Calculators
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Calculators
View 9204 business solutionsBrowse free open source Calculators and projects for Android and Linux below. Use the toggles on the left to filter open source Calculators by OS, license, language, programming language, and project status.
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$300 Free Credits to Build on Google CloudPut your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Advanced Trigonometry Calculator
Open-source C/C++ math engine for advanced scientific computing
Advanced Trigonometry Calculator (ATC) is an open-source mathematical computing engine written mainly in C/C++. Created in 2011 and maintained by Renato Alexandre dos Santos Freitas, ATC is designed as a practical Windows desktop application for advanced calculations, automation, and technical problem solving. ATC supports equation solving, polynomial tools, complex numbers, matrix calculations, statistics, physics, geometry, unit conversions, DSP/FFT operations, and scripting. It can also process batch TXT files, making it useful for repeatable calculations and automated workflows. The project also includes ATC Online Alpha, a WebAssembly-based version that brings parts of the ATC engine to the web. ATC is released under the GPLv3 license and is made in Portugal. -
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islec
ISL Solid-Liquid Equilibrium Calculator
ISL Equilibrium Calculator,which process solid-liquid equilibrium calculation by using Harvie extended Pitzer's ion interaction electrolyte solution model and particle swarm optimization Gibbs free energy minimization (GEM). ISLEC is an efficient tool for solid-liquid equilibrium calculation, and can simulate the crystallization path of seawater and salt lake brines. ISLEC is suitable for related researches and process design. -
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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 anytime Built with a local-first philosophy, zero gives you full control over your financial data. Your data. Your device. Zero servers. Open source and actively maintained. -
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"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 to find profiles easily -Small help section -Ability to save/export calculations, profiles, and charts -Runs offline as well as online
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Cut Data Warehouse Costs by 54%BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
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Alcohol Calculator
Ein Alkohol Rechner
Dieser Alkohol Rechner gibt dem Nutzer die Möglichkeit ungefähr seinen Alkoholgehalt im Blut zu bestimmen. Alle Angaben des Programms sind natürlich ohne Gewähr und natürlich kann der Alkoholgehalt auch wesentlich höher oder niedriger sein. -
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Beschleunigung-berechnen
Various calculations related to acceleration and deceleration
- Diverse Berechnungen im Zusammenhang mit Beschleunigung und Verzögerung. - Various calculations related to acceleration and deceleration Topics: rechner berechnen calculator to calculate beschleunigen beschleunigung webpage webseite -
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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 -
Earn up to 16% annual interest with Nexo.Generate interest, borrow against your crypto, and trade a range of cryptocurrencies — all in one platform. Geographic restrictions, eligibility, and terms apply.
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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 cross-platform interface, the app enables you to determine with surgical precision the exact number of years, months, weeks, and days between any two dates, eliminating the risk of human error in manual calculations. Beyond calculating time differences, the app features a versatile date projection function that allows you to add or subtract specific time periods to immediately identify future deadlines or past events, an indispensable tool for project management, legal term calculations, or retireme -
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ETBonusCalc
A bonus Calculator
A basic bonus calculator for friends. -
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JoseWebApps
Some humble web applications
Here I publish some humble web applications that I have developped. -
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Kontinuum Calculator
Calculate various aspects of the Kontinuum RPG system.
Kontinuum is a calculator program that enables the user to calculate all probabilistic aspects of the Kontinuum RPG system, especially the dice rules. -
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Nagy's Reasonable Rate Calculator
Calculate that "all inclusive rate."
Don't you deserve to make as much as a garage mechanic? Plumber? Other tradesman / woman? By including government data on the cost of food, car rentals, hotels, and other information into you rate, you can! -
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PeCalc
PeCalc is a polyvalent engineering calculator for S&T students
PeCalc allows making calculations with integer fractions, complex numbers, complex matrices, rational functions and complex polynomials. It also allows making changes of numeric base, prime factor decomposition, solving linear equation systems, statistical and financial computations, rational fraction decomposition and plotting some control engineering graphs. PeCalc includes comprehensive user help in English and Spanish. Currently PeCalc runs on Android and MS Windows. A version for GNU Linux is planned for the near future. It has been developed in Object Pascal using Embarcadero Delphi. A Lazarus/Free Pascal version will be available soon too. -
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agincourt
Lightweight calculator for Android
Agincourt is a lightweight, BODMAS-compliant calculator for Android. It is released under the GPL3 license which means you are free to look at the source code and alter it, with certain restrictions. -
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danscalculator
A calculator I am working on
A simple calculator I have created -
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pafcalc
DIY fertilizers calculator for planted acquariums
This tool allows you to perform some calculations related to DIY and dosing fertilizers in planted aquariums. -
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