1793edo: Difference between revisions
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{{Infobox ET}} | |||
{{ | {{ED intro}} | ||
1793edo is only [[consistent]] to the [[5-odd-limit]] since [[harmonic]] [[7/1|7]] is about halfway between its steps. Nonetheless, it is a good 2.3.5.11.13.17 [[subgroup]] system, in which it has a [[comma basis]] [[4225/4224]], [[6656/6655]], 42500/42471, 4787200/4782969, 703125/702559. Higher prime harmonics it supports to <25% error are 23, 31, 41, 53, 61. | |||
1793edo is a good 2.3.5.11.13.17 subgroup system, in which it has a comma basis 4225/4224, 6656/6655, 42500/42471, 4787200/4782969, 703125/702559. Higher prime harmonics it supports to <25% error are 23, 31, 41, 53, 61. | |||
If a mapping for 7 is added, this gives two interpretations. First is the patent val, which has a comma basis 2080/2079, 3025/3024, 4225/4224, 5832/5831, 14875/14872, 108086/108085. The 1793d val has a comma basis 1225/1224, 8624/8619, 12376/12375, 14400/14399, 42500/42471, 29755593/29744000. It provides the optimal patent val for the [[luminal]] temperament. | If a mapping for 7 is added, this gives two interpretations. First is the [[patent val]], which has a comma basis {[[2080/2079]], [[3025/3024]], 4225/4224, [[5832/5831]], 14875/14872, 108086/108085}. The 1793d val has a comma basis {[[1225/1224]], 8624/8619, [[12376/12375]], [[14400/14399]], 42500/42471, 29755593/29744000}. It provides the [[optimal patent val]] for the [[luminal]] temperament. | ||
1793edo tempers out the [[jacobin comma]], which is quite thematic given that 1793 is another notable year of the French Revolution, just as [[1789edo|1789]] is. The comma basis for the 1789 & 1793 temperament in the 2.5.11.13 subgroup is 6656/6655, {{monzo| -176 23 -2 35 } | 1793edo [[tempering out|tempers out]] the [[jacobin comma]], which is quite thematic given that 1793 is another notable year of the French Revolution, just as [[1789edo|1789]] is. The comma basis for the 1789 & 1793 temperament in the 2.5.11.13 subgroup is {6656/6655, {{monzo| -176 23 -2 35 }}}. | ||
=== Odd harmonics === | === Odd harmonics === | ||
{{Harmonics in equal|1793|columns=11}} | {{Harmonics in equal|1793|columns=11}} | ||
[[ | === Subsets and supersets === | ||
Since 1793 factors into {{factorization|1793}}, 1793edo contains [[11edo]] and [[163edo]] as subsets. |