Function fft 

pub fn fft<T>(
    input: &Array<T>,
    norm_factor: f64,
    odim0: i64,
) -> Array<T::ComplexOutType>
where
    T: HasAfEnum + FloatingPoint,
    <T as HasAfEnum>::ComplexOutType: HasAfEnum,

Fast fourier transform for 1d signals

Parameters

• input is the input Array
• norm_factor is the normalization factor with which the input is scaled before the transformation is applied
• odim0 is the length of output signals - used for either truncating or padding the input signals

Return Values

Transformed Array