Open Source C++ Calculators

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 (sfx), split files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hashes, export task definition as command line script.

Integrated Development Environment for some microcontrollers based on 8051(e.g. AT89S8253). Supported languages are Assembly and C. It has its own simulator, assembler, editor and many other tools. See the project web site for more details and the newest updates.

Calculator is the open source version of the Microsoft Windows Calculator application. It is a modern Windows app written in C++ and C#, offering standard, scientific, and programmer modes, unit/currency conversion, date calculations, and history/memory operations. It ships preinstalled with Windows and is actively developed on GitHub. Standard Calculator functionality, which offers basic operations and evaluates commands immediately as they are entered. Scientific Calculator functionality, which offers expanded operations and evaluates commands using the order of operations. Programmer Calculator functionality, which offers common mathematical operations for developers, including conversion between common bases.

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! Accurate and fast emulation. Customizable speed/throttling. Resizable calculator screen. "Always-on-top" window option. Screen capture (PNG). Screen recording (animated PNG). File sending/receiving (not for Apps/OS yet). Multiple keybinding presets. Emulation states for efficient saving / restoring. Color skins (like the real devices). Available in English, French, Spanish, and Dutch.

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).

GraphCalc is a very gui graphing calculator. It has been called a good replacement for a TI-85. It is a must for any high school math student.

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 Diffusion, Quanto, Vasicek Bond Option, Turnbull Wakeman Asian, TimeSwitchOption, Look Barrier, Bachelier, PartialTimeBarrier, GapOption, Extreme Spread Option, Simple Chooser, ComplexChooser, PartialFixedLB, Executive, CashOrNothing, Extendible Writer, OptionsOnOptions, BAWAmericanApprox, BSAmericanApprox, AssetOrNothing, Bisection, BAWbisection, BSbisection, Gfrench, Gcarry, Swapoption, Complex Chooser, Super Share, EquityLinkedFXO, Spread Approximation, BinaryBarrier and more

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. More info by clicking below: https://advantrigoncalc.sourceforge.io/ Advanced Trigonometry Calculator was only and always only developed by the Portuguese Renato Alexandre dos Santos Freitas. Also author of poems, reflections and thoughts published on the platform https://www.pensador.com/autor/renato_alexandre_dos_santos_freitas/ ATC is Made in Portugal. He was born in Coimbra on July 6, 1991. He has a degree in Electrical and Telecommunications Engineering and began developing ATC at the beginning of his undergraduate studies. He works for Miclearning, Lda since April 2020. Providing services to Multimac Hito Innovation.

TTCalc is an open source bignum mathematical calculator. It features arithmetical functions, trigonometric functions, inverse trigonometric functions, hyperbolic functions, inverse hyperbolic functions, logical operators, logarithms and so on.

Extcalc is a multifunctional scientific graphic calculator for linux with features like graph drawing, graph analysis and calculating scientific functions including differentiation, integration and logic functions.

Qalculate! is a multi-purpose desktop calculator for GNU/Linux (now ported to Mac via MacPorts). It is small and simple to use but with much power and versatility underneath. Features include customizable functions, units, arbitrary precision, plotting, and a user-friendly interface (GTK+). Qalculate! has now moved to GitHub (https://github.com/Qalculate). Get the latest version from http://qalculate.github.io/downloads.html.

This is a simple calculator written in C++ with the Qt framework, without any extra features. A program for minimalists.

The TI-Basic compiler compiles TI-BASIC code to the 8XP file format used on Texas Instruments calculators, namely the TI-83, TI-83+ and TI-84+.

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".

Engineering Calculator is a lightweight, yet handy math expression evaluation and unit conversion utility that is always at your fingertips.

Command-line strong encryption tools including: triple cascaded encryptor, multiple hash calculator and multiple block cipher encryptor. Supports AES, Serpent, Twofish, SHA-512, RIPEMD-160, MD5 and other algorithms.

Full featured graphical scientific calculator modeled after actual commercial hand held scientific calculators. Fully tested and error free (as far as I know). Comes with HTML documentation, test files and sample calculator scripts. Win Xp / Linux. Works also for Windows 7 Professional and Ultimate edition.

HexTool is a simple yet effective calculator/tool; invaluable for people who work with Hex and Binary. Now you can convert between Hex, Binary and Decimal on the fly. No install needed: just unzip and run it!

Multiple dielectric transmission line calculator using a 2D field solver to compute the transmission line characteristics from the circuit trace dimensions entered by the user.

Command line calculator and tool for manipulating files and arrays of integer and floating point values.

CalcEm was the emulator that started it all. It was the first emulator for Texas Instruments calculators with public source code. CalcEm is capable of emulating Texas Instruments calculator models 82 and 83.

Graphical binary/hex calculator and bit manipulator

MACE is a Mathematical program for Algorithms, Calculations and Equations. It is designed to be as easy to run as a hand-held calculator. The goal is a neat tool covering all fields of mathematics at advanced highschool and university level. MACE has 230 logical operations, statistical distributions and functions in the fields Analysis, Arithmetic, Complex Functions, Linear Algebra, Differential Calculus, Statistics and Signal Processing. MACE provides a dialog, which supports you to insert functions intuitively. Moreover Mace has a comprehensive help menu to support the user. MACE has also its own skripting language for the advanced user. MACE can also calculate with complex numbers, integral residue classes and complex differentiable functions. In the latest release MACE has got: + Sequences as variable containers and discrete signals. + A Signal Processing section including the (fast) (inverse) Fourier transform, several filters and fir / iir Systems + bug fixes

Multitask scientific calculator. Supports plugins and scripts (in C++ and QtScript respectively) to provide different working modes and custom solving functions.

Small calculator coded in c++. Intended to be used in a terminal, takes argument(s) and outputs the result(s) chronologically. The code is about 200lines, and benefits from the shunting yard algorithm. This is not a complete calculator, don't know if it will be because i only coded it to enable myself to do quick calculations while in a terminal. Therefore it does not check for typos, and a wrong formulated expression may result into a segmentation fault. It's infix notation, and as long as you remember to always include 2 numbers per operator(including -) it should be fine. It's very important to give the exact argument number to functions as well. To use the calculator in the terminal regardless of current path, add the executable to the path for looking up programs, or simply move the program into a path already set up. Case you're on windows there's already a program by the name calc provided by windows, either uninstal it or change the name of this executable.