Cumulated Sums

Let S be a discrete set with H = (h1, ..., hm) ??Nm, V = (v1, ..., vn) ??Nn

• The cumulated row and

column sums are:

H0 = 0;

Hi = Hi-1 + hi, i=1, ... , m

V0 = 0;

Vj = Vj-1 + vj, j=1, ... , n

• Notation: A = Hm = Vn

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