---
title: "SparseMultiplyAdd(_:_:_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/sparsemultiplyadd(_:_:_:)-6qi0p"
---

# SparseMultiplyAdd(_:_:_:)

Performs y += Ax for complex double values

## Declaration

```swift
func SparseMultiplyAdd(_ A: SparseMatrix_Complex_Double, _ x: DenseVector_Complex_Double, _ y: DenseVector_Complex_Double)
```

## Discussion

Discussion Parameter A: (input) sparse matrix. Parameter x: (input) dense vector. Parameter y: (output) dense vector.

## See Also

### Complex multiply-add functions

- [SparseMultiplyAdd(_:_:_:)](accelerate/sparsemultiplyadd(_:_:_:)-8dqy7.md)