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.
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.
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.
Scientific Calculator Includes arithmetic, square root, exponent, natural log, trigonometry functions. Also, has parenthesis and memory features.
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.
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.
WebCalc Collection of free web based calculators for many subject areas.
sCal and sCal2 Small, open source (free), scientific and engineering, JavaScript-programmable calculators.
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.
ESBCalc Pro Home Page Scientific calculator with many features including Paper Trail. Windows32. Free trial download.
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.
Math Expression Calculator Evaluates mathematical expressions involving multiple variables. Offers product description, screen shots and user guide.
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 Scientific Advantage™ is a Unit Aware™ calculator that lets you work with feet-inch-fraction dimensional values and includes advanced math functions, automatic solvers, and much more. Unit Aware™ means that you can effortlessly compute with units (not just convert).
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.
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.