InverseFourierCoefficient[expr, n, t] gives the function of t whose Fourier exponential series representation has coefficients given by expr, where expr is a function of n.
NDTFourierTransform[expr, n, \[Omega]] gives a numerical approximation to the discrete time Fourier transform of expr evaluated at the numerical value \[Omega], where expr is ...
NFourierCoefficient[expr, t, n] gives a numerical approximation to the n \[Null]^th coefficient in the Fourier exponential series expansion of expr, where expr is a periodic ...
NFourierCosCoefficient[expr, t, n] gives a numerical approximation to the n\[Null]^th coefficient in the Fourier cosine series expansion of expr, where expr is a periodic ...
NFourierCosTransform[expr, t, \[Omega]] gives a numerical approximation to the Fourier cosine transform of expr evaluated at the numerical value \[Omega], where expr is a ...
NFourierSeries[expr, t, n] gives a numerical approximation to the order n Fourier exponential series expansion of expr, where expr is a periodic function of t with period 2 ...
NFourierSinCoefficient[expr, t, n] gives a numerical approximation to the n\[Null]^th coefficient in the Fourier sine series expansion of expr, where expr is a periodic ...
NFourierSinTransform[expr, t, \[Omega]] gives a numerical approximation to the Fourier sine transform of expr evaluated at the numerical value \[Omega], where expr is a ...
NFourierTransform[expr, t, \[Omega]] gives a numerical approximation to the Fourier transform of expr evaluated at the numerical value \[Omega], where expr is a function of t.
NFourierTrigSeries[expr, t, k] gives a numerical approximation to the order n Fourier trigonometric series expansion of expr, where expr is a periodic function of t with ...