---
title: "simd_make_double4(_:_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_make_double4(_:_:)-767qm"
---

# simd_make_double4(_:_:)

Returns a new vector from a vector and a scalar value.

## Declaration

```swift
func simd_make_double4(_ xyz: simd_double3, _ w: Double) -> simd_double4
```

## See Also

### Functions to Create Four-Element Vectors From Combinations of Vectors and Scalar Values

- [simd_make_double4(_:_:_:)](simd/simd_make_double4(_:_:_:)-51v00.md)
- [simd_make_double4(_:_:_:)](simd/simd_make_double4(_:_:_:)-8f2vh.md)
- [simd_make_double4(_:_:)](simd/simd_make_double4(_:_:)-1ifzl.md)
- [simd_make_double4(_:_:_:)](simd/simd_make_double4(_:_:_:)-8b5fy.md)