---
title: function
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnns/fusedunaryarithmeticparameters/function
---

# function

The arithmetic function.

## Declaration

```swift
var function: BNNS.ArithmeticUnaryFunction
```

## See Also

### Inspecting the Properties of a Fused Arithmetic Parameters Structure

- [inputDescriptorType](accelerate/bnns/fusedunaryarithmeticparameters/inputdescriptortype.md)
- [outputDescriptorType](accelerate/bnns/fusedunaryarithmeticparameters/outputdescriptortype.md)