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on 5 Oct 2021
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Q=[0 0;0.4 0;0.4 -0.4;0.6 -0.4;0.6 0;1 0];
M=[1 0;0 1;0 1;-1 0];
x=[0 1 1 0 0];
y=[0 0 1 1 0];
for n=1:4
u = [];
for i=1:length(x)-1
v = [x(i+1)-x(i);y(i+1)-y(i)];
u = [u;Q*reshape(M*v,2,2)+[x(i) y(i)]];
end
x = u(:,1);
y = u(:,2);
end
plot(x,y);
axis equal off;
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