---
title: double3x3
framework: simd
role: symbol
role_heading: Type Alias
path: simd/double3x3
---

# double3x3

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

## Declaration

```swift
typealias double3x3 = simd_double3x3
```

## See Also

### Type Aliases

- [matrix_double3x3](simd/matrix_double3x3.md)