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Spinning triangles
on 14 Oct 2021
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a=[0 120 240 360 120]-150;
C=hsv(80);
for n=1:80
r=cosd(20)^(n-1);
b=a+5*(n-1);
x=r*cosd(b);
y=r*sind(b);
patch(x,y,C(n,:));
hold on
end
axis off equal