Top Alternatives to Mathematica

MATLAB (matrix laboratory) is a multi-paradigm numerical computing environment and fourth-generation programming language.

GNU Octave is a programming language for scientific computing.

R is an open source programming language and software environment for statistical computing and graphics that is supported by the R Foundation.

Sage offers business management, bookkeeping & accounting software to meet any business need, from small to midsized businesses.

Scilab is an open source, cross-platform numerical computational package and a high-level, numerically oriented programming language.

Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.

Maxima is a computer algebra system based on a version of Macsyma.

Maple is a symbolic and numeric computing environment, and is also a multi-paradigm programming language.

Python(x,y) is a free scientific and engineering development software for numerical computations, data analysis and data visualization based on Python.

Microsoft Mathematics (Microsoft Math) is a freely downloadable educational program, designed for Microsoft Windows, that allows users to solve math and science problems.

Julia is a high-level, high-performance dynamic programming language for numerical computing.

Spyder is the Scientific PYthon Development EnviRonment: a powerful interactive development environment for the Python language with advanced editing.

fxSolver is a math solver for engineering and scientific equations.

SymPy is a Python library for symbolic computation. It provides computer algebra capabilities either as a standalone application, as a library to other applications, or live on the web as SymPy Live or SymPy Gamma.

GMDH Shell is an advanced but easy to use tool for predictive analytics and data mining.

Mathcad is software for the verification, validation, documentation and re-use of engineering calculations.

Swift Calcs enables users to effortlessly create and collaborate on interactive computational documents, from any device.

GraphCalc is an open source software for Windows and Linux that provides the functionality of a graphing calculator.

Soulver is quicker to use than a spreadsheet and smarter and clearer than a traditional calculator.

FreeMat is a free environment for rapid engineering and scientific prototyping and data processing.