# Function mean Compute the mean value of matrix or a list with values. In case of a multi dimensional array, the mean of the flattened array will be calculated. When `dim` is provided, the maximum over the selected dimension will be calculated. Parameter `dim` is zero-based. ## Syntax ```js math.mean(a, b, c, ...) math.mean(A) math.mean(A, dim) ``` ### Parameters Parameter | Type | Description --------- | ---- | ----------- `args` | ... * | A single matrix or or multiple scalar values ### Returns Type | Description ---- | ----------- * | The mean of all values ## Examples ```js math.mean(2, 1, 4, 3) // returns 2.5 math.mean([1, 2.7, 3.2, 4]) // returns 2.725 math.mean([[2, 5], [6, 3], [1, 7]], 0) // returns [3, 5] math.mean([[2, 5], [6, 3], [1, 7]], 1) // returns [3.5, 4.5, 4] ``` ## See also [median](median.md), [min](min.md), [max](max.md), [sum](sum.md), [prod](prod.md), [std](std.md), [variance](variance.md)