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ifft
Inverse Fast Fourier Transform
Syntax
x = ifft(Y) x = ifft(Y, n)
Description
Computes the one-dimensional inverse discrete Fourier Transform. Recovers the original time-domain signal from its frequency-domain representation.
Parameters
| Name | Description |
|---|---|
| Y | Frequency-domain input |
| n(optional) | Transform length |
Returns
Time-domain signal
Examples
Try It
>> ifft(fft([1 2 3 4]))