---
title: geluSigmoidApproximation()
framework: accelerate
role: symbol
role_heading: Instance Method
path: accelerate/bnnsgraph/builder/tensor/gelusigmoidapproximation()
---

# geluSigmoidApproximation()

Adds a Gaussian Error Linear Unit (GELU) sigmoid approximation activation operation to the current graph.

## Declaration

```swift
func geluSigmoidApproximation() -> BNNSGraph.Builder.Tensor<T>
```