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on 26 Oct 2021
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x=0;
y=1;
c=lines(16);
axis equal off
hold on
v=[1 1];
for n=1:16
v(n+2)=v(n)+v(n+1);
a=v(n+2);
f=mod(n,4);
g=f==0;
h=f==3;
y=y-v(n)*g-a*(f==1)+v(n+1)*h;
x=x-a*g+v(n+1)*(f==2)-v(n)*h;
p=[x y a a];
rectangle('Pos',p,'FaceC',c(n,:));
end
t=linspace(0,5*pi,1e3);
r=23.5*1.618.^(2*t/pi);
plot(r.*cos(t),r.*sin(t),'k');
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