---
title: "tanpi(_:)"
framework: simd
role: symbol
role_heading: Function
path: "simd/tanpi(_:)-54qo6"
---

# tanpi(_:)

Returns the tangent of each element in a vector multiplied by pi.

## Declaration

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

## See Also

### Trigonometric Functions

- [acos(_:)](simd/acos(_:)-9cb48.md)
- [asin(_:)](simd/asin(_:)-70soc.md)
- [atan(_:)](simd/atan(_:)-5w6c7.md)
- [atan2(_:_:)](simd/atan2(_:_:)-19fnn.md)
- [cos(_:)](simd/cos(_:)-1leci.md)
- [cospi(_:)](simd/cospi(_:)-8cke2.md)
- [sin(_:)](simd/sin(_:)-67ulu.md)
- [sinpi(_:)](simd/sinpi(_:)-45nf0.md)
- [sincos(_:)](simd/sincos(_:)-9olep.md)
- [sincospi(_:)](simd/sincospi(_:)-40ymv.md)
- [tan(_:)](simd/tan(_:)-5zsp2.md)