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# BNNS.ActivationFunction.clampedLeakyRectifiedLinear(alpha:beta:)

An activation function that returns its input clamped to beta when that is greater than or equal to zero, otherwise it returns its input multiplied by alpha clamped to beta.

```
case clampedLeakyRectifiedLinear(alpha: Float, beta: Float)
```

## Discussion

This constant defines an activation function that returns values using the following operation:

```c
if x < 0
    min(alpha*x, beta)
else
    min(x, beta) 
```

The following illustrates the output that the activation function generates from inputs in the range `-10...10`, an `alpha` of `1` and a `beta` of `5`:

![Graph that shows input values for the activation function on horizontal axis and its output values on vertical axis. ](images/com.apple.accelerate/media-3654627@2x.png)

---

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