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huangshuang1ľ³æ (ÖøÃûдÊÖ)
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Matlab ode45Çó½â·ÇÏßÐÔ·½³Ì ÒÑÓÐ1È˲ÎÓë
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function f=mmm(t,y) f=zeros(4,1); f(1)=y(2); f(2)=(50*pi-y(2))/((50*pi-y(2))^2+595.8566)*1.858*10^6-1.52*10^5*(0.0625*y(1)-0.149*y(3))-1.43*10^7*(0.0625*y(1)-0.149*y(3))^2-2.86*10^6*(0.0625*y(1)-0.149*y(3))^3-32.36*(0.0625*y(2)-0.149*y(4)); f(3)=y(4); f(4)=-86.994-2.437*10^4*(0.149*y(3)-0.0625*y(1))-2.29*10^6*(0.149*y(3)-0.0625*y(1))^2-4.58*10^5*(0.149*y(3)-0.0625*y(1))^3-5.185*(0.149*y(4)-0.0625*y(2)); y0=[0,50*pi,0,50*pi]; [t,y]=ode45(@mmm,[0:0.002:20],y0); plot(t,y(:,2),t,y(:,4),':') ÓÃODE45Ò»Ö±´¦ÓÚbusy״̬£¬È»ºóÎÒ»»³ÉODE23S£¬¿ÉÊǽá¹ûÕñµ´µÃºÜÀ÷º¦£¬²»ÊÕÁ²¡£ ÇëÎʸ÷룬Õâ¸ö¸ÃÔõô½â£¿£¿ |
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huangshuang1
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