Suppose that a FFT object has been defined and the fifo array stores 1024 time domain signal points. The first 1024 elements of fftData array are the same as the fifo array and the last 1024 elements of fftData array are all zeros:
float fifo ;
float fftData ;
After the call of function performFrequencyOnlyForwardTransform (fftData): FFT.performFrequencyOnlyForwardTransform (fftData), what contents of each fftData array element? is each element’s value represents a frequency component’s magnitude? If so,what is that magnitude’s corresponding frequency value?