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```{index} single: PDL::FFT; Perl module
```

# PDL::FFT

```{pperl-module-badges} PDL::FFT
```

##  Synopsis

    use PDL;
    use PDL::FFT;
    my $re = sequence(8);
    my $im = zeroes(8);
    fft($re, $im);
    ifft($re, $im);

## Functions

### Other Functions

#### `fft`

`fft($re, $im)`

#### `ifft`

`ifft($re, $im)`

#### `realfft`

`realfft($re)`

#### `realifft`

`realifft($re, $im)`