---
title: SparseFactorizationLDLTUnpivoted
framework: accelerate
role: symbol
role_heading: Global Variable
path: accelerate/sparsefactorizationldltunpivoted
---

# SparseFactorizationLDLTUnpivoted

A constant that represents Cholesky-like LDLᵀ factorization with only one-by-one pivots and no pivoting.

## Declaration

```swift
var SparseFactorizationLDLTUnpivoted: SparseFactorization_t { get }
```

## See Also

### Factorization types for symmetric coefficient matrices

- [SparseFactorizationCholesky](accelerate/sparsefactorizationcholesky.md)
- [SparseFactorizationLDLT](accelerate/sparsefactorizationldlt.md)
- [SparseFactorizationLDLTSBK](accelerate/sparsefactorizationldltsbk.md)
- [SparseFactorizationLDLTTPP](accelerate/sparsefactorizationldlttpp.md)