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FIg.1. Example of ImplicitPlot

Mathematica is a commercial computer algebra system with own programming language that supports functional and procedural programming styles. It was originally conceived by Stephen Wolfram and is developed by the Wolfram Research. It provides cross-platform support for symbolic computation with a large set of tools for numerical calculations, arbitrary precision arithmetic, data processing, plotting (see Fig.1 and its source) and the Matlink toolbox for interfacing external programs.

Mathematica programs and data are stored in standard Mathematica files called notebooks. Data in notebooks are organized in cells, which can be arbitrarily nested. A free viewer for Mathematica files (notebooks) called Mathematica Player is available at the Wolfram Research web page.