# tensorplay.sspaddmm

Source: https://www.tensorplay.cn/docs/generated/tensorplay.sspaddmm.html

```python
tensorplay.sspaddmm(input, mat1, mat2, *, beta=1, alpha=1, out=None) → Tensor
```

Matrix multiplies a sparse tensor mat1 with a dense tensor
mat2, then adds the sparse tensor input to the result.

Note: This function is equivalent to tensorplay.addmm(), except
input and mat1 are sparse.

Parameters:

- input ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – a sparse matrix to be added

- mat1 ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – a sparse matrix to be matrix multiplied

- mat2 ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – a dense matrix to be matrix multiplied

Keyword Arguments:

- beta (Number, optional) – multiplier for mat ($\beta$)

- alpha (Number, optional) – multiplier for $mat1 @ mat2$ ($\alpha$)

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