---
title: simd_double3x4
framework: simd
role: symbol
role_heading: Structure
path: simd/simd_double3x4
---

# simd_double3x4

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

## Declaration

```swift
struct simd_double3x4
```

## Topics

### Initializers

- [init()](simd/simd_double3x4/init().md)
- [init(_:)](simd/simd_double3x4/init(_:)-11lc1.md)
- [init(diagonal:)](simd/simd_double3x4/init(diagonal:).md)
- [init(_:)](simd/simd_double3x4/init(_:)-74wu4.md)
- [init(_:_:_:)](simd/simd_double3x4/init(_:_:_:).md)
- [init(columns:)](simd/simd_double3x4/init(columns:).md)
- [init(rows:)](simd/simd_double3x4/init(rows:).md)

### Matrix Properties

- [transpose](simd/simd_double3x4/transpose.md)
- [columns](simd/simd_double3x4/columns.md)

### Matrix Creation Functions

- [simd_matrix(_:_:_:)](simd/simd_matrix(_:_:_:)-4o4n5.md)
- [simd_matrix_from_rows(_:_:_:_:)](simd/simd_matrix_from_rows(_:_:_:_:)-7j052.md)
- [matrix_from_rows(_:_:_:_:)](simd/matrix_from_rows(_:_:_:_:)-69xld.md)

### Element Access

- [subscript(_:)](simd/simd_double3x4/subscript(_:).md)
- [subscript(_:_:)](simd/simd_double3x4/subscript(_:_:).md)

### Type Aliases

- [double3x4](simd/double3x4.md)
- [matrix_double3x4](simd/matrix_double3x4.md)

### Deprecated Symbols

- [matrix_equal(_:_:)](simd/matrix_equal(_:_:)-4qog1.md)
- [matrix_from_columns(_:_:_:)](simd/matrix_from_columns(_:_:_:)-4no1k.md)
- [matrix_transpose(_:)](simd/matrix_transpose(_:)-8am0o.md)
- [init(_:)](simd/simd_double3x4/init(_:)-2qvpe.md)
- [cmatrix](simd/simd_double3x4/cmatrix.md)

### Operators

- [*(_:_:)](simd/simd_double3x4/*(_:_:)-15q5b.md)
- [*(_:_:)](simd/simd_double3x4/*(_:_:)-2qxoj.md)
- [*(_:_:)](simd/simd_double3x4/*(_:_:)-3xyct.md)
- [*(_:_:)](simd/simd_double3x4/*(_:_:)-4g9jd.md)
- [*(_:_:)](simd/simd_double3x4/*(_:_:)-4qzww.md)
- [*(_:_:)](simd/simd_double3x4/*(_:_:)-6qa2j.md)
- [*(_:_:)](simd/simd_double3x4/*(_:_:)-962p4.md)
- [*=(_:_:)](simd/simd_double3x4/*=(_:_:)-62fjm.md)
- [*=(_:_:)](simd/simd_double3x4/*=(_:_:)-sjb5.md)
- [+(_:_:)](simd/simd_double3x4/+(_:_:).md)
- [+=(_:_:)](simd/simd_double3x4/+=(_:_:).md)
- [-(_:)](simd/simd_double3x4/-(_:).md)
- [-(_:_:)](simd/simd_double3x4/-(_:_:).md)
- [-=(_:_:)](simd/simd_double3x4/-=(_:_:).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_double4x2](simd/simd_double4x2.md)
- [simd_double4x3](simd/simd_double4x3.md)
- [simd_double4x4](simd/simd_double4x4.md)