---
title: "init(_:_:)"
framework: swift
role: symbol
role_heading: Initializer
path: "swift/simd3/init(_:_:)"
---

# init(_:_:)

A three-element vector created by appending a scalar to a two-element vector.

## Declaration

```swift
init(_ xy: SIMD2<Scalar>, _ z: Scalar)
```