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Scilab for real dummies
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  1. 1. Dr.EWJohnny Heikell Dr.EWJohnny Heikell Scilab for Real Dummies,Scilab for Real Dummies, Introducing an Open-SourceIntroducing an Open-Source Alternative to MatlabAlternative to Matlab Johnny HeikellJohnny Heikell v1.0 / Scilab 5.3.2 (5.3.3) "It is a mistake often made in this country to measure things by the amount of money they cost." Albert Einstein
  2. 2. About this presentationAbout this presentation I compiled this presentation while familiarizing myself with Scilab for basic engineering applications. The exercise taught that a reason to the limited spread of Scilab is lack of good tutorials in English, which makes learning Scilab a frustrating experience for programming newbies. It’s a pity because Scilab deserves better recognition. Hopefully this presentation can be of use to at least some Scilab aspirants. The text no doubt has shortcomings and errors. I hope to come up with an improved version in a not too distant future (with Scilab 6). Please post comments & suggestions at: Espoo in August 2011 Johnny Heikell www.heikell.fi LinkedIn Copyleft: This material is released under the only condition that you do not put restrictions or a price tag on your redistributions—modified or not—and add this requirement to child copies. Otherwise © J. Heikell 2011
  3. 3. Tribute to old godsTribute to old gods The best Scilab tutorials are non-English. The following are the ones that I have consulted most for this work: • Timo Mäkelä’s Scilab/Xcos tutorials (3 parts) in Finnish <http://sites. google.com/site/tjmakela/home>. Heavy on mathematical formalism, standard dull LaTeX typesetting, but the best one I know • Jean-Marie Zogg’s Arbeiten mit Scilab und Scicos in German <http://www.fh-htwchur.ch/uploads/media/Arbeiten_mit_Scilab_und_ Scicos_v1_01.pdf>. It’s good and informal, and contains details that Mäkelä has omitted. Needs updating • Wolfgang Kubitzki’s mixed tutorials in German that can be found at <http://www.mst.fh-kl.de/~kubitzki/>. Quite good, a lot of details, few practical examples (scripts in separate .zip files) I am indebt to their work.  “To copy from one is plagiarism, to copy from many is research.” Unknown
  4. 4. Why I did itWhy I did it the way I did itthe way I did it As a grad student at KU in 1990-91, I needed to quickly learn MathCAD or Matlab. A fellow student showed me MathCAD basics in 15 minutes with the use of a sine function. The lecture went something like this: • “First you declare the variables that you need” • “Then you define the function that you want to plot” • “After