---
title: "instanceNorm(epsilon:)"
framework: accelerate
role: symbol
role_heading: Instance Method
path: "accelerate/bnnsgraph/builder/tensor/instancenorm(epsilon:)"
---

# instanceNorm(epsilon:)

Adds a instance normalization operation to the current graph.

## Declaration

```swift
func instanceNorm(epsilon: Float = .ulpOfOne.squareRoot()) -> BNNSGraph.Builder.Tensor<T>
```

## Parameters

- `epsilon`: The epsilon value that the function uses to avoid division by zero.

## Discussion

Discussion This function performs instance normalization of self.self must be at least three-dimensional.