---
title: "init(log2n:radix:ofType:)"
framework: accelerate
role: symbol
role_heading: Initializer
path: "accelerate/vdsp/fft/init(log2n:radix:oftype:)"
---

# init(log2n:radix:ofType:)

Initializes a new fast Fourier transform instance.

## Declaration

```swift
init?(log2n: vDSP_Length, radix: vDSP.Radix, ofType: T.Type)
```