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8Â¥: Originally posted by george1990 at 2014-03-31 18:53:11
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function dy=lyl(t,y)
dy=zeros(4,1);
dy(1)=y(2);
dy(3)=y(4);
dy(2)=(300*sin(t)-(dy(4)+0.5*y(2)+10*y(4)+1000*y(1)+600*y(4).*y(3)+300*y(2).*y(3)))/100;
dy(4)=(10 ...

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dy(2)=(300*sin(t)-(dy(4)+0.5*y(2)+10*y(4)+1000*y(1)+600*y(4).*y(3)+300*y(2).*y(3)))/100;
dy(4)=(100*cos(t)-(dy(2)+y(4)+10*y(2)+2*y(3)+3*y(2).*y(3)+20*y(1).*y(3)))/30;
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lylpiao: ½ð±Ò+5, ¡ïÓаïÖú, лл 2014-03-30 11:47:20
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3Â¥: Originally posted by daiyouming at 2014-03-25 18:39:05
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