Maximath - Graphing calculator. Includes matrix editor and unit conversions.
UnitMath - Simplifies calculations involving numbers, units, and precision.
Scientific Calculator - Javascript scientific calculator using RPN.
Wahoo Software - Financial desktop calculator.
Scientific Calculator - Java applet online calculator.
Calculator.org - Calculator resources including free download of scientific engineering, statistical, and financial calculators.
Sicyon - Online graphing calculator.
My Ten Key - A realistic ten key calculator designed by a CPA.
Matrix Calculator - Calculator for basic matrix operations. A demo version download is available.
Printing Calculator by Auroa Binary Systems - Desktop printing calculator. Prints in columns and color on standard-sized paper.
Constructive Reals Calculator - An RPN calculator applet and supporting Java library.
1st Calculator - Scientific calculator.
WIRIS - JAVA applet that allows mathematical online calculations.
MathServ Calculus ToolKit - Online calculators for several calculus functions.
Calculators by Ken - Reference programs written in VB3. Includes common mathematical formulas.
Quadratic Equation Calculator - Calculator for solving a general quadratic equation.
Multi-Function Calculator - Multi-function shareware calculator, and unit conversion utility for Windows. Four modes of operation: statistics, trigonomety, base-n, and unit conversion.
Date Calculator - Perform date math, calculate date differences, and organize data and events.
Monachos Calculators - Online calculators with variety of engineering functions, including unit conversion, periodic table, piping applications, and electrical applications.
Volume of Partially Full Cylinders, Spheres and Cones - Java applet for partially full cylinder (on side), sphere, and cone.
BAC Computer Software - Calculator that performs the basic arithmetic operations on fractions and then at the press of a button gives you a detailed explanation of how the computation was done.
Advanced Converter - Program for conversion between units of measurements.
GoldfishSoft - Free software for the Macintosh. FrakKalk, the newest GoldfishSoft Program, is a fraction calculator for Mac OS X.
Big Integer Numbers Calculator - Free download big integer numbers calculator.
Jason's Calculator - Open source calculator application for the Windows platform.
Calculator Express Math Formulas - Includes arithmetic, mortgage and currency exchange processing features. Uses a dialog box and icons for input.
Programmable Mathematics Freeware - Calculator and numeric system supporting permanent installation of user defined functions and libraries.
High Precision JavaScript Calculator - A JavaScript Calculator that adds, subtracts and multiplies fairly large numbers. Functions are added in my copious free time.
Analysis, a Tool Dedicated to Calculus - Analysis is a tool that can draw 2D and 3D graphs of functions with different characteristics. Implicit f(x,y)=g(x,y)form curves are plot in a xy plane. Free download for all Windows versions
AddsUp - PC function calculator that operates in Windows.
Jason's Calculator - The homepage for an easy to use multipurpose shareware calculator.
RPN Calculator - This Windows programs emulates a fully programmable HP29C RPN calculator that has been augmented with linear curve fit and graphing capability. It was written to serve as a fun introduction to computer programming.
Linear Algebra Calculator - mcalcdos is a free command line linear algebra calculator capable of matrix, vector and polynomial operations in real and complex fields.
X-Bc - a GUI to bc - X-Bc is desktop calculator that provides lots of functionality for scientific working. Input and output stay visble at all time for correction and comparation. It's a frontend to bc.
WebCalc - Collection of free web based calculators for many subject areas.
sCal and sCal2 - Small, open source (free), scientific and engineering, JavaScript-programmable calculators.
Fung-Calc - Graphing Calculator - 2D and 3D graphing calculator for Linux with multiple graphing modes.
GCalc - An online graphing calculator Java applet.
PAPCW - Programmable arbitrary precision RPN calculator. Zip file, download will start immediately.
Speakeasy - A user-oriented software package that allows non-programmers the opportunity to explore the computational power of their computer. Free trial download.
Command-line Calculator for tcsh/bash/zsh - Guide on how to create a simple command-line calculator for the tcsh, bash and zsh shells.
PG Calculator - A scientific calculator with full customizable user interface. Aalgebraic and RPN mode. Windows; shareware trial version.
ScriptConsole - Mathematical calculations using scripts and commands in a console-based multiple-window interface using the Microsoft VBScript engine. Windows; shareware.
Pocket 16C Calculator - HP-16C emulator calculator for Pocket PC, by Pirrama Development. Free trial download.
Pocket Calculator - Online calculator, written in Java. Includes Square root button and number memory. Source code can be downloaded.
Haxial Calculator - High precision calculator with unit and radix converters.
gNumerator - A interactive computer math system that uses standard JavaScript as the scripting language, and a collection of re-usable math oriented components such as a complete MathML DOM implementation, and a MathML viewing / editing control.
Calculator Directory - Extensive variety of software calculators collected in one directory. Scientific, graphing, loan and mortgage, currency and conversion calculators.
HiDigit - Powerful calculator for students and teachers. Five number systems, full complex numbers support, and 15-digit maximum precision.
Online Matrix Calculator - Calculates matrix determinant and inverse. Performs LU, Cholesky, QR, SVD decompositions. Calculates eigenvalues and eigenvectors.
Syntan - a calculator of math functions for Windows. - A calculator of math functions based on syntax analysis with living graph. Free download.
SplineCalc - SplineCalc is a multipurpose scientific calculator for implementation of various mathematical operations with maps (grids), data tables, lines, polygons and numbers.
Scientific Advantage Calculator for Pocket PC - Calculator works with feet-inch-fraction dimensional values and includes advanced math functions, and automatic solvers.
Calcs4 - A library of online calculations for use with your web browser as well as the ability to create your own calculations and publish them to the web for your own use or to share with the webpage community.
GCalc -- Java Mathematical Graphing System - Free online graphing calculator for education use with 2d, 3d, cartesian, polar, calculus, differential equations, scientific, implicit function components.
Online Calculators - A collection of everyday use calculators and converters written in Javascript and PHP, available to use and download.
Unit Conversion Tool - Convert between 2200 units in 78 measurement categories. Includes units for length, mass, temperature, volume, area, speed, pressure, energy, power, force, fuel consumption, flow and torque.
PractiCalc Windows Calculator - PractiCalc is a calculator and conversion tool for all 32 bit windows platforms. It provides result of calculations they are typed.
EngCalc Calculator - Calculate and evaluate expressions even by copying and pasting expressions from other applications. It can also read txt (Text) or .doc files automatically line by line.
Harculator - Fully functional graphing calculator built around the Microsoft Office suite.
Scientific calculator with graphing capabilities - Fornux Calculator is a scientific calculator for Windows that can plot functions and diagrams with many mathematical functions for statistics and algebra.
16 function webpage calculator - Scientific web page calculator, written in JavaScript.
DreamCalc Pro - Photo-realistic scientific and financial calculator for Windows. Free trial download.
Archimede - A powerful calculator for Linux. Algebric, RPN, vectors, matrices, quaternions, System, equations, complex numbers, solution of triangles, measure conversion. License GPL.
CLK-Calculator - RPN Calculator with unit conversion and matirx calculator. Functions for vectors and complex numbers and a function-plotter.
Easy Date Converter - Adds a number of days to a date, calculates the number of days between two dates, and converts among Gregorian dates, Julian dates, Julian day numbers and ordinal dates of the form yyyyddd. Supports batch computation.
Matrix Calculator - Online Java calculator for matrix operations.
5000 digit calculator - A calculator that takes calculations out to many, many digits
Scientific Calculator - Javascript calculator with basic scientific functions.
Wise Calculator Homepage - Scientific and engineering calculator for Windows.
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