ParaView is an application designed with the need to visualize large data sets in mind. The goals of the ParaView project include the following:
Develop an open-source, multi-platform visualization application.
Support distributed computation models to process large data sets.
Create an open, flexible, and intuitive user interface.
Develop an extensible architecture based on open standards.
ParaView runs on distributed and shared memory parallel as well as single processor systems and has been succesfully tested on Windows, Linux and various Unix workstations and clusters. Under the hood, ParaView uses the Visualization Toolkit as the data processing and rendering engine and has a user interface written using a unique blend of Tcl/Tk and C++.
Gnuplot is a command-driven interactive function plotting program. It can be used to plot functions and data points in both two- and three-dimensional plots in many different formats, and will accommodate many of the needs of today's scientists for graphic data representation. gnuplot is copyrighted, but freely distributable; you don't have to pay for it.
Scilab est un logiciel open source gratuit de calcul numérique qui fournit un puissant environnement de développement pour les applications scientifiques et l’ingénierie.
Scilab est distribué sous la licence open source CeCILL (compatible GPL), et est téléchargeable gratuitement. Il est disponible sous GNU/Linux, Mac OS X et Windows XP/Vista/7/8 (voir les configurations système).
Scilab contient des centaines de fonctions mathématiques, des fonctions graphiques 2D et 3D et un environnement de programmation.