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y(6)=-171.6*y(4)*y(5)+49.12*y(3)*y(2)+11.05+74.104*sin(2t);

dy(1)=-1.91*y(3)*y(4)-11.66*y(5)*y(2)+0.4*y(2)*y(2)+15.25*y(5)*y(5)-0.51*sin(2t)+0.9;

dy(2)=0.82*y(5)*y(1)-0.9*y(3)-0.43*sin(2.047t)+33.4*y(4)*y(5)-0.94*y(3)*y(2)-0.8;

dy(3)=7*y(2)+0.59*y(4)*y(1)+0.4*y(3)+96*y(4)/y(1)-0.1*y(4)+0.4*y(1)*t-0.2*cos(2t)-

4.62279911;

dy(4)=-5*y(5)+0.1*y(3)*y(1)+2/y(1)-0.1*y(3)+0.5*y(4)+2*t-5*sin(2t)-3;
  
dy(5)=0.3*y(4)+0.4*y(1)*y(2)-0.5*y(2)*y(5)*y(5)+0.1*y(2)*y(2)*y(5)+0.4*cos(2t)+0.1;

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feixiaolin

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Áî y=p1*exp(p2*x)+p3*exp(i*p4*x)        // i^2= -1
2Â¥2015-09-07 21:53:23
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wyjjf

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2Â¥: Originally posted by feixiaolin at 2015-09-07 21:53:23
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Áî y=p1*exp(p2*x)+p3*exp(i*p4*x)        // i^2= -1

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