Syntonic–Archytas equivalence continuum: Difference between revisions

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{{Mathematical interest}}
The '''syntonic–Archytas equivalence continuum''' is a continuum of 7-limit rank-3 temperament families which equate a number of [[81/80|syntonic commas (81/80)]] with an [[64/63|Archytas comma (64/63)]]. This continuum is theoretically interesting in that these are all 7-limit rank-3 temperament families supported by [[Meantone family#Dominant|dominant]] temperament.
The '''syntonic–Archytas equivalence continuum''' is a continuum of 7-limit rank-3 temperament families which equate a number of [[81/80|syntonic commas (81/80)]] with an [[64/63|Archytas comma (64/63)]]. This continuum is theoretically interesting in that these are all 7-limit rank-3 temperament families supported by [[Meantone family#Dominant|dominant]] temperament.


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| [[Mint]]
| [[Mint]]
| [[36/35]]
| [[36/35]]
| {{monzo| 2 2 -1 -1 }}
| {{Monzo| 2 2 -1 -1 }}
|-
|-
| 0
| 0
| [[Archytas]]
| [[Archytas]]
| [[64/63]]
| [[64/63]]
| {{monzo| 6 -2 0 -1 }}
| {{Monzo| 6 -2 0 -1 }}
|-
|-
| 1/2
| 1/2
| 63 & 68 & 80
| 63 & 68 & 80
| [[327680/321489]]
| [[327680/321489]]
| {{monzo| 16 -8 1 -2 }}
| {{Monzo| 16 -8 1 -2 }}
|-
|-
| 1
| 1
| [[Hemifamity family|Hemifamity]]
| [[Hemifamity]]
| [[5120/5103]]
| [[5120/5103]]
| {{monzo| 1 5 1 -4 }}
| {{Monzo| 1 5 1 -4 }}
|-
|-
| 5/4
| 5/4
| 894 & 441 & 1106
| 894 & 441 & 1106
|  
|  
| {{monzo| 44 -28 5 -4 }}
| {{Monzo| 44 -28 5 -4 }}
|-
|-
| 19/15
| 19/15
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| 118 & 125 & 130
| 118 & 125 & 130
| [[2109289329/2097152000]]
| [[2109289329/2097152000]]
| {{monzo| -24 16 -3 2 }}
| {{Monzo| -24 16 -3 2 }}
|-
|-
| 2
| 2
| 72 & 77 & 79
| 72 & 77 & 79
| [[413343/409600]]
| [[413343/409600]]
| {{monzo| -14 10 -2 1 }}
| {{Monzo| -14 10 -2 1 }}
|-
|-
| ∞
| ∞
| [[Didymus rank three family|Didymus]]
| [[Didymus]]
| [[81/80]]
| [[81/80]]
| {{monzo| -4 4 -1 0 }}
| {{Monzo| -4 4 -1 0 }}
|}
|}


[[Category:Equivalence continua]]
[[Category:Equivalence continua]]