742edo: Difference between revisions

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== Regular temperament properties ==
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
{{comma basis begin}}
! rowspan="2" | [[Subgroup]]
! rowspan="2" | [[Comma list|Comma List]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br>8ve Stretch (¢)
! colspan="2" | Tuning Error
|-
! [[TE error|Absolute]] (¢)
! [[TE simple badness|Relative]] (%)
|-
|-
| 2.3.5
| 2.3.5
| {{monzo| 23 6 -14 }}, {{monzo| -84 53 }}
| {{monzo| 23 6 -14 }}, {{monzo| -84 53 }}
| {{mapping| 742 1176 1723 }}
| {{mapping| 742 1176 1723 }}
| -0.0157
| &minus;0.0157
| 0.0555
| 0.0555
| 3.43
| 3.43
Line 32: Line 24:
| 2401/2400, 14348907/14336000, {{monzo| 23 6 -14 }}
| 2401/2400, 14348907/14336000, {{monzo| 23 6 -14 }}
| {{mapping| 742 1176 1723 2083 }}
| {{mapping| 742 1176 1723 2083 }}
| -0.0035
| &minus;0.0035
| 0.0525
| 0.0525
| 3.24
| 3.24
Line 39: Line 31:
| 2401/2400, 9801/9800, 172032/171875, 1240029/1239040
| 2401/2400, 9801/9800, 172032/171875, 1240029/1239040
| {{mapping| 742 1176 1723 2083 2567 }}
| {{mapping| 742 1176 1723 2083 2567 }}
| -0.0123
| &minus;0.0123
| 0.0501
| 0.0501
| 3.10
| 3.10
Line 46: Line 38:
| 2401/2400, 4096/4095, 6656/6655, 9801/9800, 39366/39325
| 2401/2400, 4096/4095, 6656/6655, 9801/9800, 39366/39325
| {{mapping| 742 1176 1723 2083 2567 2746 }}
| {{mapping| 742 1176 1723 2083 2567 2746 }}
| -0.0302
| &minus;0.0302
| 0.0608
| 0.0608
| 3.76
| 3.76
Line 53: Line 45:
| 1701/1700, 2058/2057, 2401/2400, 2601/2600, 4096/4095, 6656/6655
| 1701/1700, 2058/2057, 2401/2400, 2601/2600, 4096/4095, 6656/6655
| {{mapping| 742 1176 1723 2083 2567 2746 3033 }}
| {{mapping| 742 1176 1723 2083 2567 2746 3033 }}
| -0.0317
| &minus;0.0317
| 0.0564
| 0.0564
| 3.49
| 3.49
Line 60: Line 52:
| 1701/1700, 2058/2057, 2376/2375, 2401/2400, 2432/2431, 2601/2600, 3213/3211
| 1701/1700, 2058/2057, 2376/2375, 2401/2400, 2432/2431, 2601/2600, 3213/3211
| {{mapping| 742 1176 1723 2083 2567 2746 3033 3152 }}
| {{mapping| 742 1176 1723 2083 2567 2746 3033 3152 }}
| -0.0295
| &minus;0.0295
| 0.0531
| 0.0531
| 3.28
| 3.28
Line 67: Line 59:
| 1197/1196, 1496/1495, 1701/1700, 2025/2024, 2058/2057, 2401/2400, 2601/2600, 3213/3211
| 1197/1196, 1496/1495, 1701/1700, 2025/2024, 2058/2057, 2401/2400, 2601/2600, 3213/3211
| {{mapping| 742 1176 1723 2083 2567 2746 3033 3152 3357 }} (742i)
| {{mapping| 742 1176 1723 2083 2567 2746 3033 3152 3357 }} (742i)
| -0.0468
| &minus;0.0468
| 0.0699
| 0.0699
| 4.32
| 4.32
|}
{{comma basis end}}
* 742et has a lower 19-limit [[Tenney-Euclidean temperament measures #TE simple badness|relative error]] than any previous equal temperaments. It is only bettered by [[935edo|935]] in terms of absolute error, and by [[1178edo|1178]] in terms of relative error.  
* 742et has a lower 19-limit [[Tenney-Euclidean temperament measures #TE simple badness|relative error]] than any previous equal temperaments. It is only bettered by [[935edo|935]] in terms of absolute error, and by [[1178edo|1178]] in terms of relative error.  
* 742et (742i val) is also notable in the 17- and 23-limit, where it has lower absolute errors than any previous equal temperaments. In the 17-limit it beats [[581edo|581]] and is bettered by [[764edo|764]]; in the 23-limit it beats [[718edo|718]] and is bettered by [[814edo|814]].  
* 742et (742i val) is also notable in the 17- and 23-limit, where it has lower absolute errors than any previous equal temperaments. In the 17-limit it beats [[581edo|581]] and is bettered by [[764edo|764]]; in the 23-limit it beats [[718edo|718]] and is bettered by [[814edo|814]].  


=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
{{rank-2 begin}}
! Periods<br>per 8ve
! Generator*
! Cents*
! Associated<br>Ratio*
! Temperaments
|-
|-
| 1
| 1
Line 101: Line 88:
|-
|-
| 14
| 14
| 434\742<br>(10\742)
| 434\742<br />(10\742)
| 701.886<br>(16.173)
| 701.886<br />(16.173)
| 3/2<br>(105/104)
| 3/2<br />(105/104)
| [[Silicon]]
| [[Silicon]]
|-
|-
| 53
| 53
| 239\742<br>(1\742)
| 239\742<br />(1\742)
| 386.523<br>(1.617)
| 386.523<br />(1.617)
| 5/4<br>(32805/32768)
| 5/4<br />(32805/32768)
| [[Mercator]]
| [[Mercator]]
|-
|-
| 53
| 53
| 565\742<br>(5\742)
| 565\742<br />(5\742)
| 913.746<br>(8.086)
| 913.746<br />(8.086)
| 441/260<br>(196/195)
| 441/260<br />(196/195)
| [[Iodine]]
| [[Iodine]]
|}
{{rank-2 end}}
<nowiki>*</nowiki> [[Normal lists|octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if it is distinct
{{orf}}