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finding harmonic amplitudes of a sinewave

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Syed AWM
Syed AWM on 1 Oct 2020
Answered: Xavier on 1 Oct 2020
I have a sine wave with frequency of 'wn', how can I get the amplitudes of its harmonics i.e amplitude at '2*wn', '3*wn' ... I tried using 'fft' function in matlab, if fft does that then why the sumation of all harmonics from 'fft' does not equal to the max amplitude of actual signal?

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