MATLAB Program: t=0:0.001:2*pi; x=2*cos(t); y=1+2*sin(t); fill(x,y,'g'); axis square hold on x2=-1+0.1*cos(t); y2=2+0.1*sin(t); fill(x2,y2,'k'); hold on; x3=1+0.1*cos(t); y3=2+0.1*sin(t); fill(x3,y3,'k') t=-0.6:0.1:0.6; y=-t.^2; plot(t,y,'r','linewidth',5)
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