calculate an equation with index

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Dija
Dija 2014-12-2
编辑： Dija 2014-12-3
how can i calculate this equation kon=k1n1+k2n2+....kr-1nr-1

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Thorsten
Thorsten 2014-12-2
x = 0:N-1;
kon = sum(x.^2);

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