---
title: columns
framework: metalperformanceshaders
role: symbol
role_heading: Instance Property
path: metalperformanceshaders/mpsmatrix/columns
---

# columns

The number of columns in the matrix.

## Declaration

```swift
var columns: Int { get }
```

## See Also

### Properties

- [device](metalperformanceshaders/mpsmatrix/device.md)
- [rows](metalperformanceshaders/mpsmatrix/rows.md)
- [dataType](metalperformanceshaders/mpsmatrix/datatype.md)
- [rowBytes](metalperformanceshaders/mpsmatrix/rowbytes.md)
- [data](metalperformanceshaders/mpsmatrix/data.md)
- [matrices](metalperformanceshaders/mpsmatrix/matrices.md)
- [matrixBytes](metalperformanceshaders/mpsmatrix/matrixbytes.md)