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# Cumulative

Developer
Futurama-Editor
Futurama-Formulas

Module: Editor

Version: 5.1.4 +

Type: Long or Double

Category: Matrix

## Description

The formula 'Cumulative' returns a cumulative matrix over a specified dimension. A cumulative is the sum of each number in the matrix from left to right or top to bottom. The function 'Cumulative' creates a new matrix with the same amount of rows and columns as the matrix used for the input, but with the cumulatives.

## Parameters

Matrix:               the matrix you want to accumulate.

Dimension:         the dimension to accumulate. 1 means downwards (over rows), 2 means rightwards (over columns).

## Example

### Description

In the following example the formula 'Cumulative' is used to accumulate a matrix over dimension 2 (over columns).

### Values parameters

Matrix:

Column1Column2Column3Column4
2 4
3

Dimension: 2

### Result

Matrix:

Column1Column2Column3Column4
2 6 12  20
3 15  24

The result is a matrix with cumulatives. In the most right column are the total sums of the rows.

## Related Topics

CumulativeProductMatrix : The formula 'CumulativeProductMatrix' returns a cumulative product matrix over a specified dimension.