---
title: simd_double4x2
framework: simd
role: symbol
role_heading: Structure
path: simd/simd_double4x2
---

# simd_double4x2

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

## Declaration

```swift
struct simd_double4x2
```

## Mentioned in

Working with Matrices

## Topics

### Initializers

- [init()](simd/simd_double4x2/init().md)
- [init(_:)](simd/simd_double4x2/init(_:)-3i3he.md)
- [init(diagonal:)](simd/simd_double4x2/init(diagonal:).md)
- [init(_:)](simd/simd_double4x2/init(_:)-9pvdm.md)
- [init(_:_:_:_:)](simd/simd_double4x2/init(_:_:_:_:).md)
- [init(columns:)](simd/simd_double4x2/init(columns:).md)
- [init(rows:)](simd/simd_double4x2/init(rows:).md)

### Matrix Properties

- [transpose](simd/simd_double4x2/transpose.md)
- [columns](simd/simd_double4x2/columns.md)

### Matrix Creation Functions

- [simd_matrix(_:_:_:_:)](simd/simd_matrix(_:_:_:_:)-6cze4.md)
- [simd_matrix_from_rows(_:_:)](simd/simd_matrix_from_rows(_:_:)-5xq2d.md)
- [matrix_from_rows(_:_:)](simd/matrix_from_rows(_:_:)-2rxkt.md)

### Element Access

- [subscript(_:)](simd/simd_double4x2/subscript(_:).md)
- [subscript(_:_:)](simd/simd_double4x2/subscript(_:_:).md)

### Type Aliases

- [double4x2](simd/double4x2.md)
- [matrix_double4x2](simd/matrix_double4x2.md)

### Deprecated Symbols

- [matrix_from_columns(_:_:_:_:)](simd/matrix_from_columns(_:_:_:_:)-6tb78.md)
- [matrix_equal(_:_:)](simd/matrix_equal(_:_:)-5v8g0.md)
- [matrix_transpose(_:)](simd/matrix_transpose(_:)-7ttoe.md)
- [init(_:)](simd/simd_double4x2/init(_:)-hovz.md)
- [cmatrix](simd/simd_double4x2/cmatrix.md)

### Operators

- [*(_:_:)](simd/simd_double4x2/*(_:_:)-5166x.md)
- [*(_:_:)](simd/simd_double4x2/*(_:_:)-64ht9.md)
- [*(_:_:)](simd/simd_double4x2/*(_:_:)-73ixh.md)
- [*(_:_:)](simd/simd_double4x2/*(_:_:)-7fz5.md)
- [*(_:_:)](simd/simd_double4x2/*(_:_:)-8tpc2.md)
- [*(_:_:)](simd/simd_double4x2/*(_:_:)-mlrw.md)
- [*(_:_:)](simd/simd_double4x2/*(_:_:)-qtns.md)
- [*=(_:_:)](simd/simd_double4x2/*=(_:_:)-2s2r4.md)
- [*=(_:_:)](simd/simd_double4x2/*=(_:_:)-9qlax.md)
- [+(_:_:)](simd/simd_double4x2/+(_:_:).md)
- [+=(_:_:)](simd/simd_double4x2/+=(_:_:).md)
- [-(_:)](simd/simd_double4x2/-(_:).md)
- [-(_:_:)](simd/simd_double4x2/-(_:_:).md)
- [-=(_:_:)](simd/simd_double4x2/-=(_:_:).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_double2x2](simd/simd_double2x2.md)
- [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_double4x3](simd/simd_double4x3.md)
- [simd_double4x4](simd/simd_double4x4.md)