Wolfram Alpha

Wolfram Alpha is a "Computational Knowledge Engine" - different from a search engine, it answers factual queries directly by computing the answer from structured data, rather than providing a list of documents or web pages that...

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MATLAB

MATLAB is a numerical computing environment and programming language.

Commercial Mac OS X Windows Linux

R (programming language)

R is a free software environment for statistical computing and graphics.

Free Open Source Mac OS X Windows Linux BSD

GNU Octave

octave is a computer program for performing numerical computations which is mostly compatible with matlab. it is part of the gnu project.

Free Open Source Mac OS X Windows Linux BSD

Mathematica

Mathematica is a computational software program used widely in scientific, engineering, and mathematical fields and other areas of technical computing.

Commercial Mac OS X Windows Linux Web

Sage

Sage is a free open-source mathematics software system licensed under the GPL. It combines the power of many existing open-source packages into a common Python-based interface.

Free Open Source Mac OS X Windows Linux Web

Scilab

Scilab is a scientific software package for numerical computations providing a powerful open computing environment for engineering and scientific applications.

Free Open Source Mac OS X Windows Linux

scipy numpy

SciPy (pronounced "Sigh Pie") is open-source software for mathematics, science, and engineering. It is also the name of a very popular conference on scientific programming with Python.

Free Open Source Mac OS X Windows Linux

wxMaxima

wxMaxima is a document based interface for the computer algebra system Maxima. wxMaxima uses wxWidgets and runs natively on Windows, X11 and Mac OS X.

Free Open Source Mac OS X Windows Linux

Spyder

Spyder (previously known as Pydee) is a free open-source Python development environment providing MATLAB-like features in a simple and light-weighted software, available for Windows XP/Vista/7, GNU/Linux and Mac OS X.

Free Open Source Mac OS X Windows Linux

Maple

Maple is a general-purpose commercial computer algebra system. Users can enter mathematics in traditional mathematical notation. Custom user interfaces can also be created.

Commercial Mac OS X Windows Linux

python(x,y)

python(x,y) is a free scientific and engineering development software for numerical computations, data analysis and data visualization based on python programming language, qt graphical user interfaces and http://alternativein .

Free Open Source Windows

Mathcad

Mathcad is engineering calculation software that drives innovation and offers significant process productivity advantages for product development and engineering design projects.

Commercial Windows

Swift Calcs

The Collaborative Computational Notebook Built for Modern Engineering. Enter math as it appears on paper, get instantaneous results, and share your calculations with colleagues and clients.

Free Web

Freemat

FreeMat is an environment for rapid engineering and scientific processing. It is similar to commercial systems such as MATLAB from Mathworks and IDL from Research Systems, but is Open Source.

Free Open Source Mac OS X Windows Linux

jasymca

Jasymca is an interactive System for solving math problems. It supports arbitrary precision numbers and symbolic variables. Scalars, vectors, and matrices can be built from all datatypes and used in calculations.

Free Open Source Mac OS X Windows Linux Android Web Windows Mobile Java Mobile S60

Axiom

Axiom is a general purpose Computer Algebra system. It is useful for research and development of mathematical algorithms. It defines a strongly typed, mathematically correct type hierarchy.

Free Open Source Mac OS X Linux

Addi

Java based and open sourced version of matlab and octave Getting more and more compatible over time.

Free Open Source Android

MathStudio

MathStudio, formerly SpaceTime, is the most comprehensive math app available for mobile devices.

Commercial Mac OS X Android iPhone Android Tablet iPad Web Kindle Fire Apple Watch

Reinteract

Reinteract is a system for interactive experimentation with Python. Reinteract worksheets contain Python code combined with the results of that code, formatted as text or graphical plots.

Free Open Source Mac OS X Windows Linux