---
title: symbolicFactorization
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/sparseopaquefactorization_complex_float/symbolicfactorization
---

# symbolicFactorization

A semi-opaque type representing symbolic matrix factorization.

## Declaration

```swift
var symbolicFactorization: SparseOpaqueSymbolicFactorization
```

## Discussion

Discussion Represents a symbolic matrix factorization (i.e. the pattern of the factors without the values). A single symbolic factorization may be the basis for multiple numerical factorizations of matrices with the same pattern but different values non-zero values.         Use the `SparseCleanup` function to free resources held by these         objects. The internal factorization pointer is refence counted,         so it is safe to destroy this object even if numeric         factorizations exist that still depend on it.