If I use the following code in Mathematica(adsbygoogle = window.adsbygoogle || []).push({});

To take the fourier transform of two data sets, how can I use the resulting data to determine the difference d2-d1?Code (Text):f1[t_] := Cos[w t + d1]; f2[t_] := Cos[w t + d2];

data1 = Table[f1[t], {t,1,10000}]; data2 = Table[f2[t], {t,1,10000}];

ft1 = Fourier[data1]; ft2 = Fourier[data2];

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# Discrete Fourier Transform to find phase shift - Mathematica

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