Calculators

Updated 3 Jun 2020
PAST
Past is free software for scientific data analysis, with functions for data manipulation, plotting, univariate and multivariate statistics, ecological analysis, time series and spatial analysis, morphometrics and stratigraphy.
5.3 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Big Button Calculator
This is a simple 10-digit display calculator with a large display and large buttons, styled after the big hand held calculators found in stores.
1.94 MB | For Windows 7, Windows 8 / Vista / XP / NTShareware
Scilab
An advanced scientific mathematics app that's sophisticated allowing simulation and supports algebra: Scilab was designed to be a scientific software package for numerical computations providing a powerful open computing environment for engineering and scientific applications.
127 MB | For Windows 7, Windows 8 / Vista / XPFree
GeoGebra Portable
Free and portable math software that can be used in and out of the classroom for geometry, algebra and calculus: GeoGebra Portable is a very useful mathematics tool for education in secondary schools, which brings together geometry, algebra and calculus.
57.5 MB | For Windows 7, Windows 8 / Vista / XPFree
AccelWare Unit Conversion Tool
Convert between units: Conversion made easy with AccelWare.
513 KB | For Shareware
AccelWare Unit Conversion Tool Review - Download
GeoGebra
Free mathematics software with utilities for performing algebra, calculus and geometry which creates different visual flat and 3D graphs: GeoGebra is a useful mathematics tool for education in secondary schools, which brings together geometry, algebra and calculus.
50.8 MB | For Windows 7, Windows 8 / Vista / XPFree
Maxima
Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, sets, lists, vectors, matrices and tensors.
48.7 MB | For Windows 7, Windows 8 / Vista / XPFree
gnuplot
Gnuplot is a portable command-line driven graphing utility that was originally created to allow scientists and students to visualize mathematical functions and data interactively, but has grown to support many non-interactive uses such as web scripting.
25.3 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Estimator
Estimator is a free program you can create estimations for constructions, print an estimation and a proposal.
7.5 MB | For Windows 7, Windows 8 / Vista / XPFree
RedCrab
Powerful scientific calculator that can create complex mathematical expressions and plot functions in a user-friendly way: RedCrab Calculator is a mathematics software with fullscreen editor for the free placement of algebraic formulas on the worksheet in mathematical notation.
4.7 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
AddUp
Powerful conversion utility and calculator: AddUP is a multifunction calculator and conversion utility for Windows.
0.36 MB | For Windows 7, Windows 8 / Vista / XP / NTShareware
AddUp Review - Download
Advanced Trigonometry Calculator
Advanced Trigonometry Calculator is a small, simple, command prompt application specially designed to help you with your trigonometry calculations.
1.9 MB | For Windows 7, Windows 8 / Vista / XPFree
Microsoft Mathematics
Microsoft Mathematics is a free calculator tool available from Microsoft which goes above and beyond what the typical Windows calculator can do.
17.6 MB | For Windows 7, Windows 8 / Vista / XPFree
Microsoft Mathematics Review - Download
Easy Credit Card Verifier
Easy Credit Card Verifier instantly checks credit card numbers for validity using LUHN10 algorithm.
0.37 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
Mini Calculator
Alternative Windows Mini Calculator with 2 views, general functions, Dec-Hex-Oct-Bin integers.
0.43 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
DeadLine Equation Calculator
Equation calculator and school help: DeadLine is a mathematical assistant tool which can help solve complex mathematical equations, plot them in graphs and provide assistance to students who require extra help in algebra and mathematics.
1.39 MB | For Windows 7, Windows 8 / Vista / XP / NTFree
DeadLine Review - Download
OpalCalc
OpenCalc is a text-based calculator which unlike spreadsheet programs, uses formulas based on a text write-up which are completely human readable.
0.51 MB | For Windows 7, Windows 8 (64-bit, 32-bit) / Vista / XPFree
OpalCalc Review - Download
Numbaz
Numbaz is an easy to use basic calculator designed specifically for children to introduce them to the world of mathematics in a fun and exciting way.
2.7 MB | For Windows 7, Windows 8 / Vista / XPFree
DreamCalc
DreamCalc is a fully featured Graphing Calculator for Windows.
4.16 MB | For Windows 7, Windows 8 / Vista / XP / NTShareware