PageRank

n = 3;
m = [1/2 1/2 0; 1/2 0 0; 0 1/2 1];
beta = 0.8;
e = ones(3, 1);
v0 = e/n;
while true
    next = beta*m*v0+(1-beta)*e/n;
    if next==v0
        disp(sprintf('PageRank computed in %d steps. \npr(A)=%f\tpr(B)=%f\tpr(C)=%f', i, v0(1), v0(2), v0(3)));
        break
    else
        v0=next;
    end
end

%PageRank computed in 87 steps.
%pr(A)=0.212121 pr(B)=0.151515  pr(C)=0.636364