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May 28th, 2018
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Octave 0.34 KB | None | 0 0
  1. function fazna_slika_duffing(a,z_0)
  2.   %nariše fazno sliko Duffingovega oscilatorja
  3.  
  4.   F=@(z,t)[z(2); z(1)-z(1)^3-a*z(2)]; %desne strani DE
  5.   n=size(z_0,2);
  6.   t=linspace(0,10);
  7.   for i=1:n
  8.     z=lsode(F, z_0(i,:),t); %rešimo sistem z danimi začetnimi pogoji
  9.     plot(z(1,:),z(2,:));
  10.     hold on;
  11.   endfor
  12.  
  13.   hold off;
  14.  
  15. endfunction
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