---
title: simd_double4x4
framework: simd
role: symbol
role_heading: Structure
path: simd/simd_double4x4
---

# simd_double4x4

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

## Declaration

```swift
struct simd_double4x4
```

## Topics

### Initializers

- [init()](simd/simd_double4x4/init().md)
- [init(_:)](simd/simd_double4x4/init(_:)-184ad.md)
- [init(diagonal:)](simd/simd_double4x4/init(diagonal:).md)
- [init(_:)](simd/simd_double4x4/init(_:)-ahnn.md)
- [init(_:)](simd/simd_double4x4/init(_:)-43z8y.md)
- [init(_:)](simd/simd_double4x4/init(_:)-45usb.md)
- [init(_:)](simd/simd_double4x4/init(_:)-vm0p.md)
- [init(_:_:_:_:)](simd/simd_double4x4/init(_:_:_:_:).md)
- [init(columns:)](simd/simd_double4x4/init(columns:).md)
- [init(rows:)](simd/simd_double4x4/init(rows:).md)
- [init(_:)](simd/simd_double4x4/init(_:)-1ara7.md)
- [init(_:)](simd/simd_double4x4/init(_:)-818zf.md)
- [init(_:)](simd/simd_double4x4/init(_:)-98553.md)

### Matrix Constants

- [matrix_identity_double4x4](simd/matrix_identity_double4x4.md)

### Matrix Properties

- [determinant](simd/simd_double4x4/determinant.md)
- [inverse](simd/simd_double4x4/inverse.md)
- [transpose](simd/simd_double4x4/transpose.md)
- [columns](simd/simd_double4x4/columns.md)

### Matrix Creation Functions

- [simd_matrix(_:_:_:_:)](simd/simd_matrix(_:_:_:_:)-28at0.md)
- [simd_matrix_from_rows(_:_:_:_:)](simd/simd_matrix_from_rows(_:_:_:_:)-898tw.md)
- [matrix_from_rows(_:_:_:_:)](simd/matrix_from_rows(_:_:_:_:)-37t0w.md)
- [simd_matrix4x4(_:)](simd/simd_matrix4x4(_:)-20mdz.md)

### Element Access

- [subscript(_:)](simd/simd_double4x4/subscript(_:).md)
- [subscript(_:_:)](simd/simd_double4x4/subscript(_:_:).md)

### Type Aliases

- [double4x4](simd/double4x4.md)
- [matrix_double4x4](simd/matrix_double4x4.md)

### Deprecated Symbols

- [matrix_invert(_:)](simd/matrix_invert(_:)-84fxh.md)
- [matrix_from_columns(_:_:_:_:)](simd/matrix_from_columns(_:_:_:_:)-61q4l.md)
- [matrix_from_diagonal(_:)](simd/matrix_from_diagonal(_:)-2r6tr.md)
- [matrix_determinant(_:)](simd/matrix_determinant(_:)-2n34p.md)
- [matrix_equal(_:_:)](simd/matrix_equal(_:_:)-3jmfe.md)
- [matrix_transpose(_:)](simd/matrix_transpose(_:)-66ecl.md)
- [init(_:)](simd/simd_double4x4/init(_:)-4fie3.md)
- [cmatrix](simd/simd_double4x4/cmatrix.md)

### Operators

- [*(_:_:)](simd/simd_double4x4/*(_:_:)-17puk.md)
- [*(_:_:)](simd/simd_double4x4/*(_:_:)-2wqm8.md)
- [*(_:_:)](simd/simd_double4x4/*(_:_:)-3jd3c.md)
- [*(_:_:)](simd/simd_double4x4/*(_:_:)-5459y.md)
- [*(_:_:)](simd/simd_double4x4/*(_:_:)-5i8yr.md)
- [*(_:_:)](simd/simd_double4x4/*(_:_:)-7cb0c.md)
- [*(_:_:)](simd/simd_double4x4/*(_:_:)-p402.md)
- [*=(_:_:)](simd/simd_double4x4/*=(_:_:)-12w8l.md)
- [*=(_:_:)](simd/simd_double4x4/*=(_:_:)-9llx.md)
- [+(_:_:)](simd/simd_double4x4/+(_:_:).md)
- [+=(_:_:)](simd/simd_double4x4/+=(_:_:).md)
- [-(_:)](simd/simd_double4x4/-(_:).md)
- [-(_:_:)](simd/simd_double4x4/-(_:_:).md)
- [-=(_:_:)](simd/simd_double4x4/-=(_:_:).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_double4x2](simd/simd_double4x2.md)
- [simd_double4x3](simd/simd_double4x3.md)