---
title: arithmetic_function
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnnslayerparametersarithmetic/arithmetic_function
---

# arithmetic_function

The arithmetic operation of the layer.

## Declaration

```swift
var arithmetic_function: BNNSArithmeticFunction
```

## See Also

### Instance Properties

- [arithmetic_function_fields](accelerate/bnnslayerparametersarithmetic/arithmetic_function_fields.md)
- [activation](accelerate/bnnslayerparametersarithmetic/activation.md)