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Fourier series with sigma approximation 1.0

  Date Added: August 01, 2013  |  Visits: 324

Fourier series with sigma approximation

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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
FOURIER SERIES WITH SIGMA APPROXIMATION RELATED
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