Function fft

fft(
realIn: Float64Array,
imagIn?: Float64Array<ArrayBufferLike>,
): [Float64Array<ArrayBufferLike>, Float64Array<ArrayBufferLike>]
Calculate the unnormalized forward discrete Fourier transform.
Parameters
- realIn: Float64Array
  Real components of the signal.
- OptionalimagIn: Float64Array<ArrayBufferLike>
  Imaginary components of the signal (all zeros assumed if missing).
Returns [Float64Array<ArrayBufferLike>, Float64Array<ArrayBufferLike>]
Array of [real coefficients, imaginary coefficients].
- Defined in index.ts:87