---
title: "acosh(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/acosh(_:)-4w84k"
---

# acosh(_:)

Returns the inverse hyperbolic cosine of each element in a vector.

## Declaration

```swift
func acosh(_ x: simd_float16) -> simd_float16
```

## See Also

### Hyperbolic Functions

- [asinh(_:)](simd/asinh(_:)-6v4m.md)
- [atanh(_:)](simd/atanh(_:)-70pvm.md)
- [cosh(_:)](simd/cosh(_:)-9kvzr.md)
- [sinh(_:)](simd/sinh(_:)-1d6si.md)
- [tanh(_:)](simd/tanh(_:)-7sto5.md)