Tu peut directement faire un graphique 3D avec matlab 
Un ti "cours" de matlab ... la 3D y est evoqué 
http://perso.unige.ch/~manuel/Matlab/MatLab1.pdf
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Hello IT ... Have you tried to turn it off and on again ? ... The button on the side, is it glowing ? ... Yeah you need to turn it on ! ... The button turns it on ? ... You DO know how a button works don't you ! ?
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