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haitao_lee

½ð³æ (ÖøÃûдÊÖ)

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clc
clear all
global w0 alpha
w0=0;
alpha=0.001
x0=[0;0];
TSPAN=0:0.01:1000;
[T,Y] = ode45('gongzhen',TSPAN,x0)
ww=w0+alpha.*TSPAN;
figure
plot(ww,Y(:,1))


function dx=gongzhen(t,x)
global w0  alpha
dx=zeros(2,1);
dx(1)=x(2);
dx(2)=-0.01*x(2)-1*x(1)-1*sin((w0+alpha*t)*t);

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haitao_lee

½ð³æ (ÖøÃûдÊÖ)

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