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on 16 Oct 2021
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figure('Color',[196 120 23]/255)
axis equal off
% Go 13x13
a=randperm(13*13);
t=0:0.001:2*pi;
x=.5*cos(t);
y=.5*sin(t);
[I,J]=ind2sub([13 13],a);
hold on
% grid on
for k=0:14
plot([0 14],[k k],'k')
plot([k k],[0 14],'k')
end
for i=1:100
u=1;
if round(rand)
u=0;
end
fill(x+I(i),y+J(i),[1 1 1]*u)
end
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