---
title: "atanh(_:)"
framework: spatial
role: symbol
role_heading: Type Method
path: "spatial/angle2d/atanh(_:)"
---

# atanh(_:)

Returns the inverse hyperbolic tangent of the specified value.

## Declaration

```swift
static func atanh(_ x: Double) -> Angle2D
```

## Parameters

- `x`: The source value.

## See Also

### Geometry functions

- [acos(_:)](spatial/angle2d/acos(_:).md)
- [acosh(_:)](spatial/angle2d/acosh(_:).md)
- [asin(_:)](spatial/angle2d/asin(_:).md)
- [asinh(_:)](spatial/angle2d/asinh(_:).md)
- [atan(_:)](spatial/angle2d/atan(_:).md)
- [atan2(y:x:)](spatial/angle2d/atan2(y:x:).md)
- [normalized](spatial/angle2d/normalized.md)