Porwell family

Revision as of 18:46, 12 December 2010 by Wikispaces>genewardsmith (**Imported revision 187559173 - Original comment: **)

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The porwell family of rank three temperaments tempers out the porwell comma, 6144/6125.

Comma: 6144/6125

7 and 9 limit minimax
[|1 0 0 0>, |0 1 0 0>, |11/5 1/5 2/5 -2/5>, 
|11/5 1/5 -3/5 3/5>]
Eigenmonzos: 4/3, 7/5

Map: [<1 0 1 4|, <0 1 1 -1|, <0 0 -2 3|]
Generators: 2, 3, 35/32
Edos: 6, 7, 8, 9, 15, 16, 22, 23, 24, 31, 37, 38, 39, 40, 46, 47, 53, 55, 59, 68, 75, 77, 84, 99, 130, 229, 412

==11 limit children==

===Zeus===
Commas: 121/120, 176/175

Minimax tuning
[|1 0 0 0 0>, |11/9 10/9 -1/3 -2/9 0>, 
|22/9 2/9 1/3 -4/9 0>, |22/9 2/9 -2/3 5/9 0>, 
|10/3 2/3 0 -1/3 0>]
Eigenmonzos: 2, 9/7, 7/5

Lattice basis: 11/10, 11/8
Map to lattice: [<0 1 -1 2 0|, <0 1 1 -1 1|]
Angle(11/10, 11/8) = 87.464 degrees

Map: [<1 0 1 4 2|, <0 1 1 -1 1|, <0 0 -2 3 1|]
Generators: 2, 3, 11/10

Zeus11[22] [[Hobbits|hobbit]] [[transversal]]
33/32, 16/15, 11/10, 8/7, 64/55, 77/64, 5/4, 14/11, 4/3, 
11/8, 45/32, 16/11, 3/2, 11/7, 8/5, 5/3, 55/32, 7/4, 
11/6, 15/8, 64/33, 2
Zeus11[24] hobbit transversal
33/32, 16/15, 11/10, 9/8, 8/7, 77/64, 11/9, 5/4, 21/16, 4/3, 11/8, 45/32, 16/11, 3/2, 32/21, 8/5, 18/11, 5/3, 7/4, 16/9, 
11/6, 15/8, 64/33, 2

13-limit

====Tridecimal Zeus====
Commas: 121/120, 176/175, 351/350

13-limit minimax
[|1 0 0 0 0 0>, |11/9 10/9 -1/3 -2/9 0 0>, 
|22/9 2/9 1/3 -4/9 0 0>, |22/9 2/9 -2/3 5/9 0 0>, 
|10/3 2/3 0 -1/3 0 0>, |14/3 -8/3 1 1/3 0 0>]
Eigenmonzos: 2, 9/7, 7/5

15-limit minimax
[|1 0 0 0 0 0>, |0 1 0 0 0 0>, 
|11/5 1/5 2/5 -2/5 0 0>,|11/5 1/5 -3/5 3/5 0 0>, 
|13/5 3/5 1/5 -1/5 0 0>, |38/5 -12/5 1/5 -1/5 0 0>]
Eigenmonzos: 2, 4/3, 7/5

Lattice basis: 11/10 length 0.7898 11/8 length 1.002
Angle(11/10, 11/8) = 106.7439 degrees
Map to lattice: [<0 1 -1 2 0 -3|, <0 1 1 -1 1 -2|]

Map: [<1 0 1 4 2 7|, <0 1 1 -1 1 -2|, <0 0 -2 3 -1  -1|]
Generators: 2, 3, 11/10
Edos: 6, 7, 8, 9, 15, 16, 22, 23, 24, 31, 37, 38, 39, 40, 46, 47, 53, 55, 59, 68, 75, 77, 84, 99, 130, 229, 282, 381, 412

Zeus13[22] hobbit transversal
260/243, 88/81, 11/10, 44/39, 162/143, 11/9, 16/13, 320/243, 4/3, 1040/729, 13/9, 729/520, 3/2, 99/65, 44/27, 18/11, 1280/729, 16/9, 11/6, 24/13, 243/130, 2
Zeus13[24] hobbit transversal
27/26, 169/81, 260/243, 162/143, 2560/2197, 65536/56133, 16/13, 216/169, 104/81, 320/243, 729/520, 1024/729, 1040/729, 99/65, 264/169, 169/108, 44/27, 243/143, 416/243, 1280/729, 243/130, 162/169, 52/27, 2

====Tinia====
Commas: 66/65, 121/120, 176/175

Original HTML content:

<html><head><title>Porwell family</title></head><body>The porwell family of rank three temperaments tempers out the porwell comma, 6144/6125.<br />
<br />
Comma: 6144/6125<br />
<br />
7 and 9 limit minimax<br />
[|1 0 0 0&gt;, |0 1 0 0&gt;, |11/5 1/5 2/5 -2/5&gt;, <br />
|11/5 1/5 -3/5 3/5&gt;]<br />
Eigenmonzos: 4/3, 7/5<br />
<br />
Map: [&lt;1 0 1 4|, &lt;0 1 1 -1|, &lt;0 0 -2 3|]<br />
Generators: 2, 3, 35/32<br />
Edos: 6, 7, 8, 9, 15, 16, 22, 23, 24, 31, 37, 38, 39, 40, 46, 47, 53, 55, 59, 68, 75, 77, 84, 99, 130, 229, 412<br />
<br />
<!-- ws:start:WikiTextHeadingRule:0:&lt;h2&gt; --><h2 id="toc0"><a name="x-11 limit children"></a><!-- ws:end:WikiTextHeadingRule:0 -->11 limit children</h2>
<br />
<!-- ws:start:WikiTextHeadingRule:2:&lt;h3&gt; --><h3 id="toc1"><a name="x-11 limit children-Zeus"></a><!-- ws:end:WikiTextHeadingRule:2 -->Zeus</h3>
Commas: 121/120, 176/175<br />
<br />
Minimax tuning<br />
[|1 0 0 0 0&gt;, |11/9 10/9 -1/3 -2/9 0&gt;, <br />
|22/9 2/9 1/3 -4/9 0&gt;, |22/9 2/9 -2/3 5/9 0&gt;, <br />
|10/3 2/3 0 -1/3 0&gt;]<br />
Eigenmonzos: 2, 9/7, 7/5<br />
<br />
Lattice basis: 11/10, 11/8<br />
Map to lattice: [&lt;0 1 -1 2 0|, &lt;0 1 1 -1 1|]<br />
Angle(11/10, 11/8) = 87.464 degrees<br />
<br />
Map: [&lt;1 0 1 4 2|, &lt;0 1 1 -1 1|, &lt;0 0 -2 3 1|]<br />
Generators: 2, 3, 11/10<br />
<br />
Zeus11[22] <a class="wiki_link" href="/Hobbits">hobbit</a> <a class="wiki_link" href="/transversal">transversal</a><br />
33/32, 16/15, 11/10, 8/7, 64/55, 77/64, 5/4, 14/11, 4/3, <br />
11/8, 45/32, 16/11, 3/2, 11/7, 8/5, 5/3, 55/32, 7/4, <br />
11/6, 15/8, 64/33, 2<br />
Zeus11[24] hobbit transversal<br />
33/32, 16/15, 11/10, 9/8, 8/7, 77/64, 11/9, 5/4, 21/16, 4/3, 11/8, 45/32, 16/11, 3/2, 32/21, 8/5, 18/11, 5/3, 7/4, 16/9, <br />
11/6, 15/8, 64/33, 2<br />
<br />
13-limit<br />
<br />
<!-- ws:start:WikiTextHeadingRule:4:&lt;h4&gt; --><h4 id="toc2"><a name="x-11 limit children-Zeus-Tridecimal Zeus"></a><!-- ws:end:WikiTextHeadingRule:4 -->Tridecimal Zeus</h4>
Commas: 121/120, 176/175, 351/350<br />
<br />
13-limit minimax<br />
[|1 0 0 0 0 0&gt;, |11/9 10/9 -1/3 -2/9 0 0&gt;, <br />
|22/9 2/9 1/3 -4/9 0 0&gt;, |22/9 2/9 -2/3 5/9 0 0&gt;, <br />
|10/3 2/3 0 -1/3 0 0&gt;, |14/3 -8/3 1 1/3 0 0&gt;]<br />
Eigenmonzos: 2, 9/7, 7/5<br />
<br />
15-limit minimax<br />
[|1 0 0 0 0 0&gt;, |0 1 0 0 0 0&gt;, <br />
|11/5 1/5 2/5 -2/5 0 0&gt;,|11/5 1/5 -3/5 3/5 0 0&gt;, <br />
|13/5 3/5 1/5 -1/5 0 0&gt;, |38/5 -12/5 1/5 -1/5 0 0&gt;]<br />
Eigenmonzos: 2, 4/3, 7/5<br />
<br />
Lattice basis: 11/10 length 0.7898 11/8 length 1.002<br />
Angle(11/10, 11/8) = 106.7439 degrees<br />
Map to lattice: [&lt;0 1 -1 2 0 -3|, &lt;0 1 1 -1 1 -2|]<br />
<br />
Map: [&lt;1 0 1 4 2 7|, &lt;0 1 1 -1 1 -2|, &lt;0 0 -2 3 -1  -1|]<br />
Generators: 2, 3, 11/10<br />
Edos: 6, 7, 8, 9, 15, 16, 22, 23, 24, 31, 37, 38, 39, 40, 46, 47, 53, 55, 59, 68, 75, 77, 84, 99, 130, 229, 282, 381, 412<br />
<br />
Zeus13[22] hobbit transversal<br />
260/243, 88/81, 11/10, 44/39, 162/143, 11/9, 16/13, 320/243, 4/3, 1040/729, 13/9, 729/520, 3/2, 99/65, 44/27, 18/11, 1280/729, 16/9, 11/6, 24/13, 243/130, 2<br />
Zeus13[24] hobbit transversal<br />
27/26, 169/81, 260/243, 162/143, 2560/2197, 65536/56133, 16/13, 216/169, 104/81, 320/243, 729/520, 1024/729, 1040/729, 99/65, 264/169, 169/108, 44/27, 243/143, 416/243, 1280/729, 243/130, 162/169, 52/27, 2<br />
<br />
<!-- ws:start:WikiTextHeadingRule:6:&lt;h4&gt; --><h4 id="toc3"><a name="x-11 limit children-Zeus-Tinia"></a><!-- ws:end:WikiTextHeadingRule:6 -->Tinia</h4>
Commas: 66/65, 121/120, 176/175</body></html>