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Write a function called bell that returns the first n rows of the Bell triangle, where n is an input argument.The function must return an n-by-n array where the top left triangle contains the Bell triangle with each row of the Bell triangle positione

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krushnasamy subramaniyan
关闭： Walter Roberson 2015-6-15
n = 7;
a = zeros(n);
a(1) = 1;
for k = 1:n-1
a(k+1,1:k+1) = cumsum(a(k,[k,1:k]),2);
end

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