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Developer(s) Metalau team, INRIA
Stable release
4.4.1 / April 2011
Operating system Linux, Windows, Mac
Type Technical computing
License Scilab License

Scicos is a graphical dynamical system modeler and simulator. Users can create block diagrams to model and simulate the dynamics of hybrid dynamical systems (both continuous and discrete time) and compile these models into executable code. Applications include signal processing, systems control, queuing systems, and the study of physical and biological systems.

Scilab includes a toolbox called Xcos which is based on Scicos.[1]

Scicos is developed in and distributed with the scientific software package ScicosLab.[2] Scicos 4.4.1 has been released in April 2011.

The book Modeling and Simulation in Scilab/Scicos with Scicoslab 4.4 by Campbell, Chancelier and Nikoukhah, provides an overview of the software.


  • Graphically model, compile, and simulate dynamical systems
  • Combine continuous and discrete-time behaviors in the same model
  • Select model elements from Palettes of standard blocks
  • Program new blocks in C, Fortran, or Scilab Language
  • Run simulations in batch mode from ScicosLab environment
  • Generate C code from Scicos model using a Code Generator
  • Run simulations in real time with real devices using Scicos-HIL
  • Generate hard real-time control executables with Scicos-RTAI
  • Simulate digital communications systems with Scicos-ModNum
  • Use implicit blocks developed in the Modelica language.

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