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# BNNSGraph.Builder.Activation

The activation function that a recurrent operation uses.

```
enum Activation
```

## Topics

### Enumeration Cases

[`case hardSigmoid`](/documentation/Accelerate/BNNSGraph/Builder/Activation/hardSigmoid)

Hard sigmoid activation

[`case linear`](/documentation/Accelerate/BNNSGraph/Builder/Activation/linear)

Linear activation.

[`case relu`](/documentation/Accelerate/BNNSGraph/Builder/Activation/relu)

Clamped Rectified Linear Unit (ReLU) activation.

[`case scaledTanh`](/documentation/Accelerate/BNNSGraph/Builder/Activation/scaledTanh)

[`case sigmoid`](/documentation/Accelerate/BNNSGraph/Builder/Activation/sigmoid)

Sigmoid acvtivation.

[`case tanh`](/documentation/Accelerate/BNNSGraph/Builder/Activation/tanh)

Tanh acivation.

## Relationships

### Conforms To

[`Equatable`](/documentation/Swift/Equatable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Sendable`](/documentation/Swift/Sendable)

[`Hashable`](/documentation/Swift/Hashable)

---

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