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

# log(epsilon:)

Adds an element-wise log operation to the current graph.

## Declaration

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

## Parameters

- `epsilon`: The epsilon value.

## Discussion

Discussion This function calculates log(self+epsilon).