User:Contribution/Successive superparticular complementary pair
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For each pair of superparticular ratios [math]\displaystyle{ {s1}/{s2} }[/math] and [math]\displaystyle{ {s2}/{s3} }[/math], there exists a ratio [math]\displaystyle{ {a}/{b} }[/math] such that [math]\displaystyle{ {s1}/{s2} }[/math] and [math]\displaystyle{ {s2}/{s3} }[/math] are [math]\displaystyle{ {a}/{b} }[/math] complementary; it is observed that [math]\displaystyle{ a−b=1 }[/math] or [math]\displaystyle{ a−b=2 }[/math]. In other words, for each ratio [math]\displaystyle{ a/b }[/math] where [math]\displaystyle{ a−b=1 }[/math] or [math]\displaystyle{ a−b=2 }[/math], there exists a pair of superparticular ratios [math]\displaystyle{ {s1}/{s2} }[/math] and [math]\displaystyle{ {s2}/{s3} }[/math] that are [math]\displaystyle{ {a}/{b} }[/math] complementary.
Bellow is a table that show for equal divisions of [math]\displaystyle{ a/b }[/math] the cent error in the mapping of superparticular ratios [math]\displaystyle{ {s1}/{s2} }[/math] and [math]\displaystyle{ {s2}/{s3} }[/math] that are [math]\displaystyle{ a/b }[/math] complementary.
We can observe a converging sequence and pattern for low errors: 5, 7, 12; then 7, 9, 16; then 9, 11, 20; then 11, 13, 24; then 13, 15, 28; then 15, 17, 32; then 17, 19, 36; then 19, 21, 40; then 21, 23, 44; etc. --
| Equave | SSCP | Equal division | Name | Mappings (Equave, SSCP) | EDO | Cent | Errors | DB EDO | DB Cent | DB Errors |
|---|---|---|---|---|---|---|---|---|---|---|
| 3/1 | 2/1, 3/2 | 3ed3/1 | Alpha 3/1 | 3\3<3/1>, 2\3<3/1>, 1\3<3/1> | 1.89278926071437 | 633.985000288462 | 0, 67.9700, -67.9700 | 1.90739592696007 | 629.130000247254 | -14.5650, 58.2600, -72.8250 |
| 5ed3/1 | Beta 3/1 | 5\5<3/1>, 3\5<3/1>, 2\5<3/1> | 3.15464876785729 | 380.391000173077 | 0, -58.8270, 58.8270 | 3.14186231690763 | 381.939079106782 | 7.7404, -54.1828, 61.9232 | ||
| 8ed3/1 | Gamma 3/1 | 8\8<3/1>, 5\8<3/1>, 3\8<3/1> | 5.04743802857166 | 237.744375108173 | 0, -11.2781, 11.2781 | 5.04255621376059 | 237.974540913462 | 1.8413, -10.1273, 11.9686 | ||
| 2/1 | 3/2, 4/3 | 5ed2/1 | Alpha 2/1 | 5\5<2/1>, 3\5<2/1>, 2\5<2/1> | 5 | 240 | 0, 18.0450, -18.0450 | 5.00991270509077 | 239.525131601721 | -2.3743, 16.6204, -18.9947 |
| 7ed2/1 | Beta 2/1 | 7\7<2/1>, 4\7<2/1>, 3\7<2/1> | 7 | 171.428571428571 | 0, -16.2407, 16.2407 | 6.99104980248710 | 171.648040552235 | 1.5363, -15.3628, 16.8991 | ||
| 12ed2/1 | Gamma 2/1 | 12\12<2/1>, 7\12<2/1>, 5\12<2/1> | 12 | 100 | 0, -1.9550, 1.9550 | 11.9978480914311 | 100.017935787756 | 0.2152, -1.8295, 2.0447 | ||
| 5/3 | 4/3, 5/4 | 7ed5/3 | Alpha 5/3 | 7\7<5/3>, 4\7<5/3>, 3\7<5/3> | 9.49840814199707 | 126.336958999921 | 0, 7.3028, -7.3028 | 9.50583353877785 | 126.238272015258 | -0.6908, 6.9081, -7.5989 |
| 9ed5/3 | Beta 5/3 | 9\9<5/3>, 5\9<5/3>, 4\9<5/3> | 12.2122390397105 | 98.2620792221608 | 0, -6.7346, 6.7346 | 12.2053823008782 | 98.3172808862904 | 0.4968, -6.4586, 6.9554 | ||
| 16ed5/3 | Gamma 5/3 | 16\16<5/3>, 9\16<5/3>, 7\16<5/3> | 21.7106471817076 | 55.2724195624655 | 0, -0.5932, 0.5932 | 21.7094399215509 | 55.2754932571412 | 0.0492, -0.5656, 0.6147 | ||
| 3/2 | 5/4, 6/5 | 9ed3/2 | Alpha 3/2 | 9\9<3/2>, 5\9<3/2>, 4\9<3/2> | 15.3856016221631 | 77.9950000961542 | 0, 3.6613, -3.6613 | 15.3915238996928 | 77.9649895501219 | -0.2701, 3.5112, -3.7813 |
| 11ed3/2 | Beta 3/2 | 11\11<3/2>, 6\11<3/2>, 5\11<3/2> | 18.8046242048660 | 63.8140909877625 | 0, -3.4292, 3.4292 | 18.7990736394111 | 63.8329325698408 | 0.2073, -3.3161, 3.5234 | ||
| 20ed3/2 | Gamma 3/2 | 20\20<3/2>, 11\20<3/2>, 9\20<3/2> | 34.1902258270291 | 35.0977500432694 | 0, -0.2385, 0.2385 | 34.1894540921914 | 35.0985422804417 | 0.0158, -0.2297, 0.2456 | ||
| 7/5 | 6/5, 7/6 | 11ed7/5 | Alpha 7/5 | 11\11<7/5>, 6\11<7/5>, 5\11<7/5> | 22.6604698881676 | 52.9556538731173 | 0, 2.0926, -2.0926 | 22.6653911133366 | 52.9441558718088 | -0.1265, 2.0236, -2.1501 |
| 13ed7/5 | Beta 7/5 | 13\13<7/5>, 7\13<7/5>, 6\13<7/5> | 26.7805553223799 | 44.8086302003300 | 0, -1.9809, 1.9809 | 26.7758951088566 | 44.8164289231577 | 0.1014, -1.9263, 2.0277 | ||
| 24ed7/5 | Gamma 7/5 | 24\24<7/5>, 13\24<7/5>, 11\24<7/5> | 49.4410252105475 | 24.2713413585121 | 0, -0.1138, 0.1138 | 49.4404896216012 | 24.2716042900130 | 0.0063, -0.1104, 0.1167 | ||
| 4/3 | 7/6, 8/7 | 13ed4/3 | Alpha 4/3 | 13\13<4/3>, 7\13<4/3>, 6\13<4/3> | 31.3224709154917 | 38.3111537795856 | 0, 1.3072, -1.3072 | 31.3266790320926 | 38.3060074376432 | -0.0669, 1.2711, -1.3380 |
| 15ed4/3 | Beta 4/3 | 15\15<4/3>, 8\15<4/3>, 7\15<4/3> | 36.1413125947981 | 33.2029999423075 | 0, -1.2469, 1.2469 | 36.1372975038827 | 33.2066890135066 | 0.0553, -1.2174, 1.2727 | ||
| 28ed4/3 | Gamma 4/3 | 28\28<4/3>, 15\28<4/3>, 13\28<4/3> | 67.4637835102899 | 17.7873213976647 | 0, -0.0611, 0.0611 | 67.4633901646646 | 17.7874251067289 | 0.0029, -0.0595, 0.0624 | ||
| 9/7 | 8/7, 9/8 | 15ed9/7 | Alpha 9/7 | 15\15<9/7>, 8\15<9/7>, 7\15<9/7> | 41.3713123417559 | 29.0056063507767 | 0, 0.8708, -0.8708 | 41.3749871639859 | 29.0030301458200 | -0.0386, 0.8501, -0.8888 |
| 17ed9/7 | Beta 9/7 | 17\17<9/7>, 9\17<9/7>, 8\17<9/7> | 46.8874873206567 | 25.5931820742147 | 0, -0.8355, 0.8355 | 46.8839609068713 | 25.5951070854196 | 0.0327, -0.8181, 0.8509 | ||
| 32ed9/7 | Gamma 9/7 | 32\32<9/7>, 17\32<9/7>, 15\32<9/7> | 88.2587996624126 | 13.5963779769266 | 0, -0.0357, 0.0357 | 88.2584985804157 | 13.5964243591413 | 0.0015, -0.0349, 0.0364 | ||
| 5/4 | 9/8, 10/9 | 17ed5/4 | Alpha 5/4 | 17\17<5/4>, 9\17<5/4>, 8\17<5/4> | 52.8068232315916 | 22.7243361096962 | 0, 0.6090, -0.6090 | 52.8100843743057 | 22.7229328303033 | -0.0239, 0.5964, -0.6202 |
| 19ed5/4 | Beta 5/4 | 19\19<5/4>, 10\19<5/4>, 9\19<5/4> | 59.0193906706024 | 20.3323007297281 | 0, -0.5870, 0.5870 | 59.0162471250305 | 20.3333837452881 | 0.0206, -0.5762, 0.5967 | ||
| 36ed5/4 | Gamma 5/4 | 36\36<5/4>, 19\36<5/4>, 17\36<5/4> | 111.826213902194 | 10.7309364962454 | 0, -0.0222, 0.0222 | 111.825976049766 | 10.7309593208108 | 0.0008, -0.0218, 0.0226 | ||
| 11/9 | 10/9, 11/10 | 19ed11/9 | Alpha 11/9 | 19\19<11/9>, 10\19<11/9>, 9\19<11/9> | 65.6288971357202 | 18.2846284544201 | 0, 0.4426, -0.4426 | 65.6318281194766 | 18.2838119001578 | -0.0155, 0.4344, -0.4499 |
| 21ed11/9 | Beta 11/9 | 21\21<11/9>, 11\21<11/9>, 10\21<11/9> | 72.5372020973750 | 16.5432352682849 | 0, -0.4281, 0.4281 | 72.5343665614942 | 16.5438819815521 | 0.0136, -0.4210, 0.4346 | ||
| 40ed11/9 | Gamma 11/9 | 40\40<11/9>, 21\40<11/9>, 19\40<11/9> | 138.166099233095 | 8.68519851584955 | 0, -0.0145, 0.0145 | 138.165906595462 | 8.68521062517612 | 0.0005, -0.0143, 0.0148 | ||
| 6/5 | 11/10, 12/11 | 21ed6/5 | Alpha 6/5 | 21\21<6/5>, 11\21<6/5>, 10\21<6/5> | 79.8374643554025 | 15.0305374762168 | 0, 0.3317, -0.3317 | 79.8401257721902 | 15.0300364433792 | -0.0105, 0.3262, -0.3367 |
| 23ed6/5 | Beta 6/5 | 23\23<6/5>, 12\23<6/5>, 11\23<6/5> | 87.4410323892504 | 13.7235342174153 | 0, -0.3218, 0.3218 | 87.4384499734953 | 13.7239395296205 | 0.0093, -0.3170, 0.3263 | ||
| 44ed6/5 | Gamma 6/5 | 44\44<6/5>, 23\44<6/5>, 21\44<6/5> | 167.278496744653 | 7.17366561364892 | 0, -0.0099, 0.0099 | 167.278337553932 | 7.17367244048030 | 0.0003, -0.0098, 0.0101 | ||
| 13/11 | 12/11, 13/12 | 23ed13/11 | Alpha 13/11 | 23\23<13/11>, 12\23<13/11>, 11\23<13/11> | 95.4324773621886 | 12.5743356262850 | 0, 0.2550, -0.2550 | 95.4349145508238 | 12.5740145066190 | -0.0074, 0.2511, -0.2585 |
| 25ed13/11 | Beta 13/11 | 25\25<13/11>, 13\25<13/11>, 12\25<13/11> | 103.730953654553 | 11.5683887761822 | 0, -0.2480, 0.2480 | 103.728582924337 | 11.5686531732080 | 0.0066, -0.2446, 0.2512 | ||
| 48ed13/11 | Gamma 13/11 | 48\48<13/11>, 25\48<13/11>, 23\48<13/11> | 199.163431016741 | 6.02520248759487 | 0, -0.0070, 0.0070 | 199.163297261208 | 6.02520653404413 | 0.0002, -0.0069, 0.0071 | ||
| 7/6 | 13/12, 14/13 | 25ed7/6 | Alpha 7/6 | 25\25<7/6>, 13\25<7/6>, 12\25<7/6> | 112.413902640048 | 10.6748362241495 | 0, 0.2002, -0.2002 | 112.416150402631 | 10.6746227806420 | -0.0053, 0.1974, -0.2028 |
| 27ed7/6 | Beta 7/6 | 27\27<7/6>, 14\27<7/6>, 13\27<7/6> | 121.407014851252 | 9.88410761495324 | 0, -0.1952, 0.1952 | 121.404823766036 | 9.88428600096291 | 0.0048, -0.1927, 0.1975 | ||
| 52ed7/6 | Gamma 7/6 | 52\52<7/6>, 27\52<7/6>, 25\52<7/6> | 233.820917491300 | 5.13213280007188 | 0, -0.0051, 0.0051 | 233.820803527977 | 5.13213530145284 | 0.0001, -0.0050, 0.0051 | ||
| 15/13 | 14/13, 15/14 | 27ed15/13 | Alpha 15/13 | 27\27<15/13>, 14\27<15/13>, 13\27<15/13> | 130.781715879411 | 9.17559455410784 | 0, 0.1601, -0.1601 | 130.783801507845 | 9.17544822955784 | -0.0040, 0.1580, -0.1620 |
| 29ed15/13 | Beta 15/13 | 29\29<15/13>, 15\29<15/13>, 14\29<15/13> | 140.469250388997 | 8.54279492968661 | 0, -0.1563, 0.1563 | 140.467213664560 | 8.54291879716245 | 0.0036, -0.1545, 0.1581 | ||
| 56ed15/13 | Gamma 15/13 | 56\56<15/13>, 29\56<15/13>, 27\56<15/13> | 271.250966268408 | 4.42394737430199 | 0, -0.0038, 0.0038 | 271.250868008139 | 4.42394897687108 | 0.0001, -0.0037, 0.0038 | ||
| 8/7 | 15/14, 16/15 | 29ed8/7 | Alpha 8/7 | 29\29<8/7>, 15\29<8/7>, 14\29<8/7> | 150.535899020849 | 7.97152046658190 | 0, 0.1300, -0.1300 | 150.537844310638 | 7.97141745648869 | -0.0030, 0.1285, -0.1314 |
| 31ed8/7 | Beta 8/7 | 31\31<8/7>, 16\31<8/7>, 15\31<8/7> | 160.917685160217 | 7.45722882357662 | 0, -0.1271, 0.1271 | 160.915782495277 | 7.45731699769858 | 0.0027, -0.1257, 0.1285 | ||
| 60ed8/7 | Gamma 8/7 | 60\60<8/7>, 31\60<8/7>, 29\60<8/7> | 311.453584181066 | 3.85290155884792 | 0, -0.0029, 0.0029 | 311.453498588282 | 3.85290261769161 | 0.0001, -0.0028, 0.0029 |
Coincidence?
As a coincidence (?), all Alpha scales are (s1 + s2)ED(a / b), all Beta scales are (s2 + s3)ED(a / b), and all Gamma scales are (s1 + s2 + s2 + s3)ED(a / b).