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FOURIER SERIES PACKAGE SYMBOL

NFourierSeries

gives a numerical approximation to the order n Fourier exponential series expansion of expr, where expr is a periodic function of t with period

The numerical approximation to the order n Fourier exponential series expansion of expr is by default defined to be , where is given by NIntegrate[expr ^{- k t}, {t, -, }].

Different choices for the period of expr can be specified using the option FourierParameters.

With the setting FourierParameters, expr is assumed to have a period of , and the order n Fourier exponential series expansion computed by is , where is given by NIntegrate[expr ^{- b k t}, {t, -, }].