---
title: "GLKMatrix4GetMatrix2(_:)"
framework: GLKit
role: symbol
role_heading: Function
platforms: [iOS 5.0+, iPadOS 5.0+, macOS 10.8+, tvOS 9.0+]
path: "glkit/glkmatrix4getmatrix2(_:)"
---

# GLKMatrix4GetMatrix2(_:)

Returns the upper-left 2x2 section of a 4x4 matrix.

## Declaration

```swift
func GLKMatrix4GetMatrix2(_ matrix: GLKMatrix4) -> GLKMatrix2
```

## Parameters

- `matrix`: A 4x4 matrix.

## Return Value

Return Value A new 2x2 matrix.

## See Also

### Working With Parts of a Matrix

- [GLKMatrix4GetMatrix3(_:)](glkit/glkmatrix4getmatrix3(_:).md)
- [GLKMatrix4GetColumn(_:_:)](glkit/glkmatrix4getcolumn(_:_:).md)
- [GLKMatrix4GetRow(_:_:)](glkit/glkmatrix4getrow(_:_:).md)
- [GLKMatrix4SetColumn(_:_:_:)](glkit/glkmatrix4setcolumn(_:_:_:).md)
- [GLKMatrix4SetRow(_:_:_:)](glkit/glkmatrix4setrow(_:_:_:).md)