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The result of cumsum([1,2,3]) and sum([3,3]) are ____________

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in MATLAB by (37.3k points)
The result of cumsum([1,2,3]) and sum([3,3]) are ____________

(a) Same

(b) Different

(c) Absolute numbers

(d) Signed numbers

The question was posed to me in an online interview.

I want to ask this question from Sums and Products in chapter Beyond the Basics of MATLAB

1 Answer

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Best answer
Right option is (b) Different

The best I can explain: The result of cumsum([1 2 3]) is 1,3,6 i.e the result is a row vector having output after adding up each element cumulatively while the result of sum([3 3]) is only 6. Hence, the two answers are different.

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