---
title: matrix_double3x3
framework: simd
role: symbol
role_heading: Type Alias
path: simd/matrix_double3x3
---

# matrix_double3x3

A type alias for a double-precision 3 x 3 matrix.

## Declaration

```swift
typealias matrix_double3x3 = simd_double3x3
```

## See Also

### Type Aliases

- [double3x3](simd/double3x3.md)