---
title: "log(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/log(_:)-xpx0"
---

# log(_:)

## Declaration

```swift
func log(_ q: simd_quatf) -> simd_quatf
```

## See Also

### Applying arithmetic operations to quaternions

- [simd_add(_:_:)](simd/simd_add(_:_:)-7641g.md)
- [simd_mul(_:_:)](simd/simd_mul(_:_:)-4a5hq.md)
- [simd_mul(_:_:)](simd/simd_mul(_:_:)-391wq.md)
- [simd_mul(_:_:)](simd/simd_mul(_:_:)-bqqq.md)
- [simd_sub(_:_:)](simd/simd_sub(_:_:)-807rv.md)
- [exp(_:)](simd/exp(_:)-9q8na.md)