---
title: "simd_make_double3_undef(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_make_double3_undef(_:)-95a07"
---

# simd_make_double3_undef(_:)

Returns a new vector from the specified two-element vector, and other elements undefined.

## Declaration

```swift
func simd_make_double3_undef(_ other: simd_double2) -> simd_double3
```

## See Also

### Functions to Create Three-Element Vectors From Other Vectors

- [simd_make_double3(_:)](simd/simd_make_double3(_:)-5ti92.md)
- [simd_make_double3(_:)](simd/simd_make_double3(_:)-5qigh.md)
- [simd_make_double3(_:)](simd/simd_make_double3(_:)-5zuas.md)
- [simd_make_double3(_:)](simd/simd_make_double3(_:)-4tl5k.md)