# k_EpsilonNormalSqrt

> Floating point epsilon value used to avoid instability in normal calculations.

## Definition

* **Type:** Field
* **Namespace:** [Unity.Mathematics](/engine/6000.6/script-reference/unity/mathematics.md)
* **Assembly:** UnityEngine.MathematicsModule

```csharp
public const float k_EpsilonNormalSqrt = 1E-15
```