2y * 1/3-(2y+9)* 1/6=1
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2y * 1/3-(2y+9)* 1/6=1
2y * 1/3-(2y+9)* 1/6=1
2y * 1/3-(2y+9)* 1/6=1
2y * 1/3-(2y+9)* 1/6=1
2y/3-y/3-3/2=1;
y/3=3/2+1;
y/3=5/2;
y=15/2;
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[T,Y]=ode45(@rigid,[0 1],[rand(15,1)]);plot(T,Y(:,1),'-',T,Y(:,2),'-.',T,Y(:,3),'.',T,Y(:,4),'-',T,Y(:,5),'-.',T,Y(:,6),'.',T,Y(:,7),'-',T,Y(:,8),'-.',T,Y(:,9),'.',T,Y(:,10),'-',T,Y(:,11),'-.',T,Y(:,12),'-.',T,Y(:,13),'.',T,Y(:,14),'-',T,Y(:,15),'.')
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