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16 Convergence of Fourier Series
www.math.umbc.eduseries approximation will have persistent oscillations in a neighborhood of the jump discontinuity. That is, there will be and overshoot/undershoot of the series at the discontinuity, no matter how many terms are included in the nite Fourier series. As a typical example let f(x) = 8 <: 1 2 ˇ<x<0 1 2 0 <x<ˇ which has the Fourier series f(x ...