The function calculates the cumulative sum of the elements in the input array. Each element of the result is equal to the previous element of the result plus the current element of the input array.
Expression: CUMSUM(arg1)
| arg1 | 5.8 | 3.2 | 1.0 | 6.9 | 1.7 |
| result | 5.8 | 9 | 10 | 16.9 | 18.6 |