---
title: "SparseSolve(_:_:_:_:_:)"
framework: accelerate
role: symbol
role_heading: Function
path: "accelerate/sparsesolve(_:_:_:_:_:)-7yfqx"
---

# SparseSolve(_:_:_:_:_:)

Solve Ax=b using the specified iterative method for complex double values.

## Declaration

```swift
func SparseSolve(_ method: SparseIterativeMethod, _ A: SparseMatrix_Complex_Double, _ b: DenseVector_Complex_Double, _ x: DenseVector_Complex_Double, _ Preconditioner: SparseOpaquePreconditioner_Complex_Double) -> SparseIterativeStatus_t
```

## Parameters

- `method`: (Input) Iterative method specification, eg return value of SparseConjugateGradient().
- `A`: (Input) The matrix A to solve the system for. Only used for multiplication by A or A^T.
- `b`: The right-hand side b to solve for. If A has dimension m x n, then b must have length m.
- `x`: On entry, initial guess for solution, on return the solution. If A has dimension m x n, then x must have length n. If no good initial estimate is available, user should set the initial guess to be the zero vector.
- `Preconditioner`: The preconditioner to apply.

## See Also

### Iterative sparse solve functions for complex matrices

- [SparseSolve(_:_:_:_:)](accelerate/sparsesolve(_:_:_:_:)-2cenj.md)
- [SparseSolve(_:_:_:_:)](accelerate/sparsesolve(_:_:_:_:)-35kl2.md)
- [SparseSolve(_:_:_:_:_:)](accelerate/sparsesolve(_:_:_:_:_:)-1ogxn.md)
- [SparseSolve(_:_:_:_:_:)](accelerate/sparsesolve(_:_:_:_:_:)-2bm9r.md)
- [SparseSolve(_:_:_:_:_:)](accelerate/sparsesolve(_:_:_:_:_:)-2ygeh.md)