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# SparseMultiply(_:_:_:)

Performs the multiply operation *Y* *= Subfactor * X* on a dense matrix of single-precision values.

```
func SparseMultiply(_ Subfactor: SparseOpaqueSubfactor_Float, _ X: DenseMatrix_Float, _ Y: DenseMatrix_Float)
```

## Parameters

`Subfactor`

The subfactor to multiply by, which [`SparseCreateSubfactor(_:_:)`](/documentation/Accelerate/SparseCreateSubfactor(_:_:)-4renf) returns.

`X`

The matrix *X*.

`Y`

The matrix *Y*.

---

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