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

GMDH Shell

Powerful forecasting software for small businesses, traders and scientists. GMDH Shell is the easiest way to accurately forecast time series, create classifiers and regression models.

Commercial Windows

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

Graph

Graph is an open source application used to draw mathematical graphs in a coordinate system. Anyone who wants to draw graphs of functions will find this program useful.

Free Open Source Windows

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

Mirai Math

Graphical frontend for GNU Octave. Edit formulas in native mathematical notation. Available / tested for Linux x586 / x86_64, WinXP, Vista, and MacOS.

Free Open Source Mac OS X Windows Linux

Addi

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

Free Open Source Android

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

OmniGraphSketcher

OmniGraphSketcher helps you make elegant and precise graphs in seconds, whether you have specific data to visualize or you just have a concept to explain. Specifically...

Free Open Source Mac OS X iPhone