sum

sum(X)

X is a scalar/vector/matrix/table.

If X is a vector, return the sum of all the elements in X.

If X is a matrix, calculate the sum of each column of X and return a vector.

If X is a table, calculate the sum of each column of X and return a table.

As with all aggregate functions, NULL values are not included in the calculation.

If all elements of a calculation are NULLs, the result is NULL.

sum(1 2 3 NULL 4);
// output
10

m=matrix(1 2 3, 4 5 6);
m;

sum(m);
// output
[6,15]