---
title: "simd_fast_recip(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/simd_fast_recip(_:)-6nf"
---

# simd_fast_recip(_:)

Returns the fast reciprocal of each element in a vector.

## Declaration

```swift
func simd_fast_recip(_ x: simd_float4) -> simd_float4
```

## See Also

### Reciprocal and Reciprocal Square Root Functions

- [simd_recip(_:)](simd/simd_recip(_:)-820ma.md)
- [recip(_:)](simd/recip(_:)-3idnw.md)
- [simd_rsqrt(_:)](simd/simd_rsqrt(_:)-i4we.md)
- [rsqrt(_:)](simd/rsqrt(_:)-3g5ej.md)
- [simd_precise_recip(_:)](simd/simd_precise_recip(_:)-6ptoq.md)
- [simd_precise_rsqrt(_:)](simd/simd_precise_rsqrt(_:)-136xw.md)
- [simd_fast_rsqrt(_:)](simd/simd_fast_rsqrt(_:)-8p7fk.md)