1. SciLab and applications in DSP Nopadon Maneetien Electrical Engineering Department Southern Taiwan University

2. From NEWS illegal software is a criminal, also in educational!!

3. Outlines SciLab Basic command DSP related command Application Example Conclusion

4. What’s SciLab ? Similar software: Matlab, Mathematica, Octave, Euler Math Toolbox, Maxima, … What is special about Scilab: free, highly supported, powerful, many users, … Freeware & Open sources

5. Use a numerical computation software After 1980 1980: Matlab written in Fortran and public domain 1984: creation of The MathWorks company Since 1990: Matlab is the standard and a monopoly Around 1980: Blaise then Basile built upon Matlab 1990: creation of Scilab at INRIA 1994: Scilab freely distributed on the net History

6. From 1994 to present : Path to success 1994: Scilab freely distributed on the net 2003 : Consortium creation at INRIA 12 Members : Axs Ingénierie, Cril Technology, CEA, CNES, Dassault Aviation, EDF, ENPC, Esterel Technologies, INRIA, PSA Peugeot Citroën, Renault et Thales From 2003 to 2007 : Growing partnership 25 Members : Ecole Centrale Paris, Ecole Polytechnique, Enpc, Anagram Technologies, Appedge, Artenum, Axs Ingenierie, Atmel Roma, Engnet, Klippel, Mandriva, Scaleo Chip, Styrel Technologies, Tni, Esterel Technologies, Cea, Cnes, Dassault Aviation, Eads, Edf, Ifp, Inria, Psa Peugeot Citroën, Renault, Thales 2008 to … : Integrate of the Digiteo research network Major objectives : Strive for excellence Integrate recent research outcomes Expand the community of contributors Develop a powerful open source ecosystem Consolidate the operation at the European and international level.

7. Computation library Matrix computation, sparse matrices Polynomials and rational functions Interpolation, approximation Simulation: systems of differential equations Classic and robust control, LMI optimization Differentiable and non-differentiable optimization Signal processing Statistics Graphs and networks Scicos: block diagram simulator for dynamical systems Graphics, GUI, GUI builder 2-D and 3-D graphics, animation Ui controls, interface with TCL/TK User interface Language, interpreter Editor On line help Scilab Consortium Toolboxes SIVP: image and video processing MIXMOD: cluster and discriminant Analysis OpenFEM: finite elements Wavelab: wavelet analysis OPC: data acquisition Grocer: econometric Modnum: communication systems in Scicos RTAI: real time Scicos CGAL: computational geometry GRID with ProActive GREENSCILAB: plant growth simulation … Contributors Other Scientific Software Interface Services Scilab More than 1,700 functions Scilab Present

9. 1,130,000 downloads since March 2003 2003 ~ 4,000/month October 2007 = 50,000 www.scilab.org

10. The reasons of the success Use cost very cheap Reliable and good quality product Reliable software publisher: Consortium, INRIA and dedicated team Open Source Scilab Matlab Non specialized computation Graphics Language, interpretor Simulink Specialized computation Tests, measures Real time, embedded Scicos Scilab today = replacing Matlab/Simulink for non specialized scientific computation