The Riemann zeta function and tuning: Difference between revisions
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Notice the sudden jump from [[79edo]] to [[5941edo]]. We know that |Z(x)| grows logarithmically on average. If we assume the scores of integer edos are uniformly distributed on the interval [0, ''c'' log ''x''], the probability for the next edo to have a zeta score less than a given small value is also very small, so we would expect valley edos to be rarer than peak edos. So, it would be more productive to find edos which zeta score is simply less than a given threshold. | Notice the sudden jump from [[79edo]] to [[5941edo]]. We know that |Z(x)| grows logarithmically on average. If we assume the scores of integer edos are uniformly distributed on the interval [0, ''c'' log ''x''], the probability for the next edo to have a zeta score less than a given small value is also very small, so we would expect valley edos to be rarer than peak edos. So, it would be more productive to find edos which zeta score is simply less than a given threshold. | ||
Note that ''tempered-octave'' zeta valley edos | Note that ''tempered-octave'' zeta valley edos would simply be any zero of Z(x). | ||
=== ''k''-ary peak edos === | === ''k''-ary peak edos === | ||
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{{EDOs|6, 8, 9, 14, 15, 17, 24, 34, 46, 58, 65, 77, 87, 111, 140, 183, 243, 301, 311, 460, 472, 525, 571, 581, 814, 836, 882, 1205}}... | {{EDOs|6, 8, 9, 14, 15, 17, 24, 34, 46, 58, 65, 77, 87, 111, 140, 183, 243, 301, 311, 460, 472, 525, 571, 581, 814, 836, 882, 1205}}... | ||
We can then remove those secondary peaks again to get ''' | We can then remove those secondary peaks again to get '''tertiary-peak edos'''. | ||
''' | '''Tertiary-peak edos''' | ||
Non-zeta-peak edos with a higher zeta peak than any smaller non-zeta-peak ''or'' Parker edo | Non-zeta-peak edos with a higher zeta peak than any smaller non-zeta-peak ''or'' Parker edo. | ||
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