public Form2(double[] signal, int sampleFreq, int N)
{
InitializeComponent();
for (var i = 0; i < N; ++i)
{
signalChart.Series["sample"].Points.AddXY(i, signal[i]);
}
FFT.OperationCount = 0;
var spectrum = FFT.dft(signal, N);
var operationCountDFT = FFT.OperationCount;
FFT.OperationCount = 0;
spectrum = FFT.fft54(signal);
var operationCountFFT = FFT.OperationCount;
var samplingStep = sampleFreq / (double)N;
for (var i = 0; i < N / 2; ++i)
{
spectrumChart.Series["harmonic"].Points.AddXY(i * samplingStep, spectrum[i].MAG / (N / 2));
}
MessageBox.Show("Operation count with DFT: " + operationCountDFT + "\nOperation count with FFT: " + operationCountFFT + "\nCAC: " + operationCountDFT / (double)operationCountFFT);
}
