285edo: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|285}}
{{ED intro}}


== Theory ==
== Theory ==
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=== Subsets and supersets ===
=== Subsets and supersets ===
Since 285 factors into 3 × 5 × 19, 285edo has subset edos {{EDOs| 3, 5, 15, 19, 57, and 95 }}.
Since 285 factors into {{factorisation|285}}, 285edo has subset edos {{EDOs| 3, 5, 15, 19, 57, and 95 }}.


== Regular temperament properties ==
== Regular temperament properties ==
{{comma basis begin}}
{| class="wikitable center-4 center-5 center-6"
|-
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[Comma list]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br />8ve stretch (¢)
! colspan="2" | Tuning error
|-
! [[TE error|Absolute]] (¢)
! [[TE simple badness|Relative]] (%)
|-
|-
| 2.3
| 2.3
| {{monzo| 452 -285 }}
| {{monzo| 452 -285 }}
| {{mapping| 285 452 }}
| {{mapping| 285 452 }}
| &minus;0.3795
| −0.3795
| 0.3794
| 0.3794
| 9.01
| 9.01
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| 67108864/66430125, {{monzo| -14 -19 19 }}
| 67108864/66430125, {{monzo| -14 -19 19 }}
| {{mapping| 285 452 662 }}
| {{mapping| 285 452 662 }}
| &minus;0.4043
| −0.4043
| 0.3117
| 0.3117
| 7.41
| 7.41
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| 3136/3125, 5120/5103, 40353607/39858075
| 3136/3125, 5120/5103, 40353607/39858075
| {{mapping| 285 452 662 800 }}
| {{mapping| 285 452 662 800 }}
| &minus;0.2673
| −0.2673
| 0.3596
| 0.3596
| 8.54
| 8.54
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| 3025/3024, 3136/3125, 5120/5103, 12005/11979
| 3025/3024, 3136/3125, 5120/5103, 12005/11979
| {{mapping| 285 452 662 800 986 }}
| {{mapping| 285 452 662 800 986 }}
| &minus;0.2289
| −0.2289
| 0.3307
| 0.3307
| 7.85
| 7.85
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| 352/351, 676/675, 847/845, 3025/3024, 12005/11979
| 352/351, 676/675, 847/845, 3025/3024, 12005/11979
| {{mapping| 285 452 662 800 986 1055 }}
| {{mapping| 285 452 662 800 986 1055 }}
| &minus;0.2618
| −0.2618
| 0.3107
| 0.3107
| 7.38
| 7.38
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=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
{{rank-2 begin}}
{| class="wikitable center-all left-5"
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
! Periods<br />per 8ve
! Generator*
! Cents*
! Associated<br />ratio*
! Temperaments
|-
|-
| 1
| 1
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| 4/3<br />(15625/15552)
| 4/3<br />(15625/15552)
| [[Enneadecal]] (5-limit)
| [[Enneadecal]] (5-limit)
{{rank-2 end}}
|}
{{orf}}
<nowiki />* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct