---
title: simd_double2x2
framework: simd
role: symbol
role_heading: Structure
path: simd/simd_double2x2
---

# simd_double2x2

A matrix of two columns and two rows that contains double-precision values.

## Declaration

```swift
struct simd_double2x2
```

## Topics

### Initializers

- [init()](simd/simd_double2x2/init().md)
- [init(_:)](simd/simd_double2x2/init(_:)-3kbjz.md)
- [init(diagonal:)](simd/simd_double2x2/init(diagonal:).md)
- [init(_:)](simd/simd_double2x2/init(_:)-6yq0z.md)
- [init(_:_:)](simd/simd_double2x2/init(_:_:).md)
- [init(columns:)](simd/simd_double2x2/init(columns:).md)
- [init(rows:)](simd/simd_double2x2/init(rows:).md)

### Matrix Constants

- [matrix_identity_double2x2](simd/matrix_identity_double2x2.md)

### Matrix Properties

- [determinant](simd/simd_double2x2/determinant.md)
- [inverse](simd/simd_double2x2/inverse.md)
- [transpose](simd/simd_double2x2/transpose.md)
- [columns](simd/simd_double2x2/columns.md)

### Matrix Creation Functions

- [simd_matrix(_:_:)](simd/simd_matrix(_:_:)-938tb.md)
- [simd_matrix_from_rows(_:_:)](simd/simd_matrix_from_rows(_:_:)-368td.md)
- [matrix_from_rows(_:_:)](simd/matrix_from_rows(_:_:)-1w56v.md)

### Element Access

- [subscript(_:)](simd/simd_double2x2/subscript(_:).md)
- [subscript(_:_:)](simd/simd_double2x2/subscript(_:_:).md)

### Type Aliases

- [double2x2](simd/double2x2.md)
- [matrix_double2x2](simd/matrix_double2x2.md)

### Deprecated Symbols

- [matrix_invert(_:)](simd/matrix_invert(_:)-nkj5.md)
- [matrix_equal(_:_:)](simd/matrix_equal(_:_:)-4claa.md)
- [matrix_from_diagonal(_:)](simd/matrix_from_diagonal(_:)-7i8pm.md)
- [matrix_determinant(_:)](simd/matrix_determinant(_:)-7kglv.md)
- [matrix_from_columns(_:_:)](simd/matrix_from_columns(_:_:)-37jug.md)
- [matrix_transpose(_:)](simd/matrix_transpose(_:)-6qaez.md)
- [init(_:)](simd/simd_double2x2/init(_:)-9vxjx.md)
- [cmatrix](simd/simd_double2x2/cmatrix.md)

### Operators

- [*(_:_:)](simd/simd_double2x2/*(_:_:)-34mwe.md)
- [*(_:_:)](simd/simd_double2x2/*(_:_:)-4srge.md)
- [*(_:_:)](simd/simd_double2x2/*(_:_:)-4x1rs.md)
- [*(_:_:)](simd/simd_double2x2/*(_:_:)-6vah1.md)
- [*(_:_:)](simd/simd_double2x2/*(_:_:)-86p1t.md)
- [*(_:_:)](simd/simd_double2x2/*(_:_:)-mvy8.md)
- [*(_:_:)](simd/simd_double2x2/*(_:_:)-xb7z.md)
- [*=(_:_:)](simd/simd_double2x2/*=(_:_:)-76lel.md)
- [*=(_:_:)](simd/simd_double2x2/*=(_:_:)-99yuu.md)
- [+(_:_:)](simd/simd_double2x2/+(_:_:).md)
- [+=(_:_:)](simd/simd_double2x2/+=(_:_:).md)
- [-(_:)](simd/simd_double2x2/-(_:).md)
- [-(_:_:)](simd/simd_double2x2/-(_:_:).md)
- [-=(_:_:)](simd/simd_double2x2/-=(_:_:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Copyable](swift/copyable.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Sendable](swift/sendable.md)

## See Also

### Matrix structures

- [simd_double2x3](simd/simd_double2x3.md)
- [simd_double2x4](simd/simd_double2x4.md)
- [simd_double3x2](simd/simd_double3x2.md)
- [simd_double3x3](simd/simd_double3x3.md)
- [simd_double3x4](simd/simd_double3x4.md)
- [simd_double4x2](simd/simd_double4x2.md)
- [simd_double4x3](simd/simd_double4x3.md)
- [simd_double4x4](simd/simd_double4x4.md)