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  • It's Really a Square! (Ehrenstein Illusion)

on 17 Oct 2022
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hold
Current plot held
for i=1:15
plot(0,0,'ow','MarkerSize',i*20)
end
line([0,1,0,-1,0],[-1,0,1,0,-1],'Color','c','LineWidth',2) % straight lines appear curved!
axis equal off
set(gcf,'Color','k')
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