how to do sum up elements one by one (sequence addition)

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vivek r
vivek r am 8 Jan. 2017
Beantwortet: Roger Stafford am 9 Jan. 2017
[1 2 3 4] to [1 3 6 10] i.e 1=1 ; 1+2=3; 1+2+3=6; so on

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halleyhit
halleyhit am 8 Jan. 2017
just a hint: [1 3 6 10]'=[1 1 1 1;0 1 1 1; 0 0 1 1; 0 0 0 1]*[1 2 3 4]'
Roger Stafford
Roger Stafford am 9 Jan. 2017
cumsum([1 2 3 4]) equals [1 3 6 10]

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