---
title: "acosh(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/acosh(_:)-2a3a"
---

# acosh(_:)

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

## Declaration

```swift
func acosh(_ x: simd_double4) -> simd_double4
```

## See Also

### Hyperbolic Functions

- [asinh(_:)](simd/asinh(_:)-847y.md)
- [atanh(_:)](simd/atanh(_:)-17pza.md)
- [cosh(_:)](simd/cosh(_:)-8h0te.md)
- [sinh(_:)](simd/sinh(_:)-3rjw6.md)
- [tanh(_:)](simd/tanh(_:)-x8vt.md)