# Function cumsum Compute the cumulative sum of a matrix or a list with values. In case of a (multi dimensional) array or matrix, the cumulative sums along a specified dimension (defaulting to the first) will be calculated. ## Syntax ```js math.cumsum(a, b, c, ...) math.cumsum(A) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `args` | ... * | A single matrix or or multiple scalar values ### Returns Type | Description ---- | ----------- * | The cumulative sum of all values ### Throws Type | Description ---- | ----------- ## Examples ```js math.cumsum(2, 1, 4, 3) // returns [2, 3, 7, 10] math.cumsum([2, 1, 4, 3]) // returns [2, 3, 7, 10] math.cumsum([[1, 2], [3, 4]]) // returns [[1, 2], [4, 6]] math.cumsum([[1, 2], [3, 4]], 0) // returns [[1, 2], [4, 6]] math.cumsum([[1, 2], [3, 4]], 1) // returns [[1, 3], [3, 7]] math.cumsum([[2, 5], [4, 3], [1, 7]]) // returns [[2, 5], [6, 8], [7, 15]] ``` ## See also [mean](mean.md), [median](median.md), [min](min.md), [max](max.md), [prod](prod.md), [std](std.md), [variance](variance.md), [sum](sum.md)