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Stairwell
on 15 Oct 2021
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a=[0 72 72*2 72*3 72*4 72*5 72*6]+20;
R=66
C=turbo(R);
C=flipud(C*0.95)
for n=1:R
r=cosd(20)^(n-1);
b=a+5*(n-1);
x=r*cosd(b);
y=r*sind(b);
patch(x,y,C(n,:),EdgeColor='y', LineW=0.3 ...
);
hold on
end
axis off equal