MathGroup Archive 2005

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fourier transform

Hi folks
           I have a list of pairs of numbers like

  {{1.2, 3.4}, {2.2, 3.6}............}
The first part is time and second part is amplitude.

when I do the fourier transform by using

it gives me list of complex numbers but I expect real numbers
(i.e . amplitude versus frequency)

Any help appreciated.

Masrur Hossain

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