---
title: "init(vector:)"
framework: simd
role: symbol
role_heading: Initializer
path: "simd/simd_quatf/init(vector:)"
---

# init(vector:)

Creates a new quaternion from a four-element vector.

## Declaration

```swift
init(vector: simd_float4)
```

## Parameters

- `vector`: The vector that supplies the imaginary part of the quaternion from elements 0, 1, and 2; and the real part from element 3.

## See Also

### Initializing a quaternion

- [init()](simd/simd_quatf/init().md)
- [init(_:)](simd/simd_quatf/init(_:)-1hlsg.md)
- [init(_:)](simd/simd_quatf/init(_:)-3751.md)
- [init(angle:axis:)](simd/simd_quatf/init(angle:axis:).md)
- [init(from:to:)](simd/simd_quatf/init(from:to:).md)
- [init(ix:iy:iz:r:)](simd/simd_quatf/init(ix:iy:iz:r:).md)
- [init(real:imag:)](simd/simd_quatf/init(real:imag:).md)
- [init(_:)](simd/simd_quatf/init(_:)-9rvr0.md)