---
title: "simd_make_double2(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_make_double2(_:)-3hpld"
---

# simd_make_double2(_:)

Returns a new vector by truncating the specified four-element vector.

## Declaration

```swift
func simd_make_double2(_ other: simd_double4) -> simd_double2
```

## See Also

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

- [simd_make_double2(_:)](simd/simd_make_double2(_:)-3qby3.md)
- [simd_make_double2(_:)](simd/simd_make_double2(_:)-3tt38.md)
- [simd_make_double2(_:)](simd/simd_make_double2(_:)-4o3ot.md)
- [simd_make_double2(_:_:)](simd/simd_make_double2(_:_:).md)