File: portrait.dem

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scilab 2.4-1
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// demo of macros portrait & fchamp
//  limit circle

// Copyright INRIA
xbasc();
part1()
// phase portrait : dimension 2
portrait(cycllim,'default',[-2,-2,2,2],[500,0.1],'f',[0,1;0.5,2]);
// field dynamic system
fchamp(cycllim,0,-2:0.2:2,-2:0.2:2,0)

//interactive 
portrait(cycllim,'default',[-2,-2,2,2],[100,0.1]);