Slow Fourier Transform

> The Mader–Ott Harmonic Analyzer (MOHA) is a high-precision mechanical instrument for determining the coefficients of a Fourier series.
> With the reactivation of the mechanical harmonic analyzer, we have been able to reproduce earlier results that showed that at least the lowest 25 Fourier coefficients [..]
> Considering the fact that the analysis of the first 10 coefficients of our test signal took on average about 2 hours, the title of this contribution seems justified.

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