# Epsilon

> A small tolerance value used to test whether a value is close enough to zero to be treated as zero.

## Definition

* **Type:** Field
* **Namespace:** [Unity.U2D.Physics](/engine/6000.7/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public const float Epsilon = 1E-05
```