# tensorplay.functional.dot

Source: https://www.tensorplay.cn/docs/generated/tensorplay.functional.dot.html

```python
tensorplay.functional.dot(input, tensor, *, out=None) → Tensor
```

Computes the dot product of two 1D tensors.

> **Note**
>
> Unlike NumPy’s dot, tensorplay.dot intentionally only supports computing the dot product of two 1D tensors with the same number of elements.

Parameters:

- input ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – first tensor in the dot product, must be 1D.

- tensor ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – second tensor in the dot product, must be 1D.

Keyword Arguments:

out ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor), optional) – the output tensor.

Example:

```
>>> tensorplay.dot(tensorplay.tensor([2, 3]), tensorplay.tensor([2, 1]))
tensor(7)

>>> t1, t2 = tensorplay.tensor([0, 1]), tensorplay.tensor([2, 3])
>>> tensorplay.dot(t1, t2)
tensor(3)
```