Scilab is free open source software for numerical computation providing a powerful computing environment for engineering and scientific applications. Gathering both industrial needs and scientific advances, Scilab covers a wide spectrum of areas : Aerospace, Automotive, Energy, Defense, Finance, Chemistry, Biology, Medicine… Scilab includes hundreds of mathematical functions. It has a high level programming language allowing access to advanced data structures, 2-D and 3-D graphical functions. A large number of functionalities is included in Scilab: control, simulation, optimization, signal processing... Xcos , the hybrid dynamic systems modeler and simulator is provided with the platform. Scilab is free software distributed under CeCILL license (GPL compatible). It comes with source code, help and English user manuals. The availability of source code is of great interest in research or for strategic applications. The distribution mode of Scilab is part