Method Math.Transforms.FFT()->rFFT()

Method rFFT

array(array(float)) rFFT(array(int|float) real_input)

Description

Returns the FFT of the input array. The input must be real and the output is complex. The output consists of an array. It's first element is the amplitudes and the second element is the phases.

Parameter real_input

The array of floats and/or ints to transform.

Note

rIFFT(rFFT()) returns the input array scaled by n=sizeof(input array). This is due to the nature of the DFT algorithm.

See also

rIFFT()