# columns

> Number of columns of the matrix is equal to the total number of all joint degrees of freedom(DOF), plus 6 if ArticulationBody.immovable is false.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public int columns { get; set; }
```