5/4: Difference between revisions
→See also: sound examples contains overtone singing |
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== Approximations by EDOs == | == Approximations by EDOs == | ||
Following [[EDO]]s (up to 200, and also | Following [[EDO]]s (up to 200, and also 643) contain good approximations<ref>error magnitude below 7, both, absolute (in ¢) and relative (in r¢)</ref> of the interval 5/4. Errors are given by magnitude, the arrows in the table show if the EDO representation is sharp (↑) or flat (↓). | ||
{| class="wikitable sortable right-1 center-2 right-3 right-4 center-5" | {| class="wikitable sortable right-1 center-2 right-3 right-4 center-5" | ||
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! Relative <br> error ([[Relative cent|r¢]]) | ! Relative <br> error ([[Relative cent|r¢]]) | ||
! ↕ | ! ↕ | ||
! class="unsortable" | Equally acceptable multiples <ref>Super EDOs up to 200 | ! class="unsortable" | Equally acceptable multiples <ref>Super EDOs up to 200 within the same error tolerance</ref> | ||
|- | |- | ||
| [[25edo|25]] || 8\25 || 2.3137 || 4.8202 || ↓ || | | [[25edo|25]] || 8\25 || 2.3137 || 4.8202 || ↓ || | ||
|- | |- | ||
| [[28edo|28]] || 9\28 || 0.5994 || 1.3987 || ↓ || [[56edo|18\56]], [[84edo|27\84]], [[112edo|36\112]], [[140edo|45\140]] | | [[28edo|28]] || 9\28 || 0.5994 || 1.3987 || ↓ || [[56edo|18\56]], [[84edo|27\84]], [[112edo|36\112]], [[140edo|45\140]] | ||
|- | |- | ||
| [[31edo|31]] || 10\31 || 0.7831 || 2.0229 || ↑ || [[62edo|20\62]], [[93edo|30\93]] | | [[31edo|31]] || 10\31 || 0.7831 || 2.0229 || ↑ || [[62edo|20\62]], [[93edo|30\93]] | ||
|- | |- | ||
| [[34edo|34]] || 11\34 || 1.9216 || 5.4445 || ↑ || | | [[34edo|34]] || 11\34 || 1.9216 || 5.4445 || ↑ || | ||
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| [[53edo|53]] || 17\53 || 1.4081 || 6.2189 || ↓ || | | [[53edo|53]] || 17\53 || 1.4081 || 6.2189 || ↓ || | ||
|- | |- | ||
| [[59edo|59]] || 19\59 || 0.1270 || 0.6242 || ↑ || [[118edo|38\118]], [[177edo|57\177]] | | [[59edo|59]] || 19\59 || 0.1270 || 0.6242 || ↑ || [[118edo|38\118]], [[177edo|57\177]] | ||
|- | |- | ||
| [[87edo|87]] || 28\87 || 0.1068 || 0.7744 || ↓ || [[174edo|56\174]] | | [[87edo|87]] || 28\87 || 0.1068 || 0.7744 || ↓ || [[174edo|56\174]] | ||
|- | |- | ||
| [[90edo|90]] || 29\90 || 0.3530 || 2.6471 || ↑ || [[180edo|58\180]] | | [[90edo|90]] || 29\90 || 0.3530 || 2.6471 || ↑ || [[180edo|58\180]] | ||
|- | |- | ||
| [[115edo|115]] || 37\115 || 0.2268 || 2.1731 || ↓ || | | [[115edo|115]] || 37\115 || 0.2268 || 2.1731 || ↓ || | ||
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| [[199edo|199]] || 64\199 || 0.3841 || 6.3691 || ↓ || | | [[199edo|199]] || 64\199 || 0.3841 || 6.3691 || ↓ || | ||
|- | |- | ||
| [[ | | [[643edo|643]] || 207\643 || 0.0004 || 0.0235 || ↑ || | ||
|} | |} | ||