Mathematica
by Wolfram
From simple calculator operations to large-scale programming and interactive-document preparation, Mathematica is the tool of choice at the frontiers of scientific research, engineering analysis and modeling, all levels of education and wherever quantitative methods are used.
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Mathematica Professional 7.0
Mathematica seamlessly integrates a numeric and symbolic computational engine, graphics system, programming language, documentation system, and advanced connectivity to other applications. More...