# Method product

#### static member product: Tensor<'T> -> 'T

Calculates the product of all elements.

##### Declaration

`static member product: src:Tensor<'T> -> 'T`

##### Parameters

Type | Name | Description |
---|---|---|

Tensor<'T> | src | The tensor containing the source values. |

##### Returns

Type | Description |
---|---|

'T | A scalar containing the result of this operation. |

##### Remarks

The product of all elements is calculated. An empty product equals one.

##### Examples

```
let a = HostTensor.ofList2D [[1.0; 2.0; 3.0; 4.0]
[5.0; 6.0; 7.0; 8.0]]
let b = Tensor.product a // b = 40320.0
```