---
title: "sign(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/sign(_:)-2qtea"
---

# sign(_:)

Returns the sign of each element in a vector.

## Declaration

```swift
func sign(_ x: SIMD3<Double>) -> SIMD3<Double>
```

## See Also

### Common Functions

- [simd_abs(_:)](simd/simd_abs(_:)-8db3x.md)
- [abs(_:)](simd/abs(_:)-8miv.md)
- [simd_clamp(_:_:_:)](simd/simd_clamp(_:_:_:)-2jao.md)
- [clamp(_:min:max:)](simd/clamp(_:min:max:)-5otf7.md)
- [clamp(_:min:max:)](simd/clamp(_:min:max:)-6m2so.md)
- [simd_equal(_:_:)](simd/simd_equal(_:_:)-4v2cb.md)
- [simd_fract(_:)](simd/simd_fract(_:)-47n4w.md)
- [fract(_:)](simd/fract(_:)-swov.md)
- [simd_sign(_:)](simd/simd_sign(_:)-6goju.md)
- [simd_step(_:_:)](simd/simd_step(_:_:)-2gbx7.md)
- [step(_:edge:)](simd/step(_:edge:)-4azct.md)