---
title: "sign(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/sign(_:)-86tur"
---

# sign(_:)

Returns the sign of each element in a vector.

## Declaration

```swift
func sign(_ x: SIMD4<Double>) -> SIMD4<Double>
```

## See Also

### Common Functions

- [simd_abs(_:)](simd/simd_abs(_:)-81rjc.md)
- [abs(_:)](simd/abs(_:)-63bb7.md)
- [simd_clamp(_:_:_:)](simd/simd_clamp(_:_:_:)-8skia.md)
- [clamp(_:min:max:)](simd/clamp(_:min:max:)-3iua3.md)
- [clamp(_:min:max:)](simd/clamp(_:min:max:)-51jkt.md)
- [simd_fract(_:)](simd/simd_fract(_:)-3w3dh.md)
- [fract(_:)](simd/fract(_:)-8mowg.md)
- [simd_equal(_:_:)](simd/simd_equal(_:_:)-6lpka.md)
- [simd_sign(_:)](simd/simd_sign(_:)-74z7b.md)
- [simd_step(_:_:)](simd/simd_step(_:_:)-6nrf4.md)
- [step(_:edge:)](simd/step(_:edge:)-641e1.md)