---
title: init()
framework: accelerate
role: symbol
role_heading: Initializer
path: accelerate/bnnsarithmeticunary/init()
---

# init()

Returns a new arithmetic structure that takes a single input.

## Declaration

```swift
init()
```

## See Also

### Creating an Arithmetic Structure

- [init(in:in_type:out:out_type:)](accelerate/bnnsarithmeticunary/init(in:in_type:out:out_type:).md)