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cumsum

cumsum(a, b, c, ...)

cumsum(A)

Compute the cumulative sum of all values.

Try it yourself:

$1	cumsum(2, 3, 4, 1)
$2	cumsum([2, 3, 4, 1])
$3	cumsum([1, 2; 3, 4])
$4	cumsum([1, 2; 3, 4], 1)
$5	cumsum([1, 2; 3, 4], 2)

See also:

max mean median min prod std sum variance