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on 5 Oct 2021
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t=0:0.001:2*pi;
x=2*cos(t);
y=1+2*sin(t);
plot(x,y);
fill(x,y,'y');
axis square
hold on
x1=-1+0.1*cos(t);
y1=2+0.1*sin(t);
fill(x1,y1,'k');
hold on;
x2=1+0.1*cos(t);
y2=2+0.1*sin(t);
fill(x2,y2,'k')
t1=-0.8:0.1:0.8;
y3=t1.^2;
plot(t1,y3,'k','linewidth',5)
axis off
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