---
title: "transform(_:)"
framework: accelerate
role: symbol
role_heading: Instance Method
path: "accelerate/vdsp/dct/transform(_:)"
---

# transform(_:)

Returns the single-precision real discrete cosine transform.

## Declaration

```swift
func transform<U>(_ vector: U) -> [Float] where U : AccelerateBuffer, U.Element == Float
```

## See Also

### Instance Methods

- [transform(_:result:)](accelerate/vdsp/dct/transform(_:result:).md)