Fourier series with sigma approximation 1.0

Date Added: August 01, 2013 | Visits: 603

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Program FFTSIGMA plots Fourier series representations with sigma approximation. The figures show effects of the number of series terms and use of Lanczos sigma factors to smooth Gibbs oscillations. The Fourier series of a periodic function with period px has the approximate form: f(x) = sum( exp(2i*pi/px*k*x)*c(k),... k=-n:n) If the function has discontinuities, a better approximation can sometimes be produced by using a smoothed function fa(x) obtained by local averaging of f(x) as follows: fa(x) = integral(f(x+u)*du, -s

Requirements: No special requirements

Platforms: Matlab

Keyword: Approximate, Averaging, Discontinuities, Dnn, Exp Ipipxkxck, Function, Period, Produced

Users rating: 0/10

License: Shareware

Size: 10 KB

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FOURIER SERIES WITH SIGMA APPROXIMATION RELATED

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