---
title: "init(device:a:b:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpscnnneuronrelun/init(device:a:b:)"
---

# init(device:a:b:)

## Declaration

```swift
init(device: any MTLDevice, a: Float, b: Float)
```