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Quotes credited to FOLDOC are from The Free On-line Dictionary of Computing,, Denis Howe, Editor.

IDL (Research Systems, Inc)

A commercial array-oriented language with numerical analysis and display features, first released in 1977. It supports interactive reduction, analysis, and visualisation of scientific data." (from FOLDOC)

IGOR Pro (WaveMetrics)

"IGOR Pro is an interactive environment for experimentation with scientific and engineering data and for the production of publication-quality graphs and page layouts." (from the WaveMetrics web site)

MATLAB (The MathWorks)

"An interactive program from The MathWorks for high-performance numeric computation and visualisation. MATLAB integrates numerical analysis, matrix computation, signal processing, and graphics in an easy-to-use environment." (from FOLDOC)

Origin (OriginLab)

Origin is "scientific graphing and analysis software" that "combine[s] presentation-quality graphics, the C language, and the NAG numerical library in a single package." (from the OriginLab web site)

R (The R Project)

"R is a language and environment for statistical computing and graphics." It "provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, ...) and graphical techniques, and is highly extensible." (from the R web site)


SPSS is a modular, tightly integrated, full-featured product line for the analytical process ? planning, data collecting, data access, data management and preparation, analysis, reporting and deployment. (from the SPSS web site)


TCL is "an interpreted string processing language for issuing commands to interactive programs, developed by John Ousterhout at [the University of California, Berkeley]." (from FOLDOC)

TK is "a GUI library, generally used with TCL by John Ousterhout, but also available from within C or Perl. Tk is available for X Window System, Microsoft Windows and Macintosh." (from FOLDOC)

VTK (Kitware Inc)

"The Visualization ToolKit (VTK) is an open source, freely available software system for 3D computer graphics, image processing, and visualization used by thousands of researchers and developers around the world. VTK consists of a C++ class library, and several interpreted interface layers including Tcl/Tk, Java, and Python." (from the Kitware web site)