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on 29 Oct 2021
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% I think the smithchart in itself is beautiful art and wanted to make sure
% it got represented.
%
% Plot a smith chart, and then rotate 90 deg
t=pi*[0:.0001:2];
p=@(a,b,c)plot(a*(b-exp(1j*t))+c,'color','k','linew',2);
hold;
Current plot held
for r=[0:.4:20]
q=1/(r+1);
%plot(q*exp(1j*t)-q+1,'Color','k');
l=p(q,0,1-q);
l.Color=[0 0 0 q/2];
%plot(1-exp(1j*t)/r+j/r);
l=p(1/r,r,j/r);
l.Color=[0 0 0 q/2];
%plot(1-exp(1j*t)/r-j/r);
l=p(1/r,r,-j/r);
l.Color=[0 0 0 q/2];
end
axis([-1 1 -1 1])
camva(6)
camup([-1 0 0])
set(gcf,'Color',.8*[1 1 1.03])
axis off
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