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sum

sum(a, b, c, ...)

sum(A)

sum(A, dimension)

Compute the sum of all values.

Try it yourself:

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

See also:

max mean median min prod std sum variance