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↓ ABCD schemes
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table of coefficients (about 18 digits) (.txt) ABC scheme, real: AY 15-6
s=15, p=6; symmetric 7-fold Strang composition, analogous to AB:Y 8-6 (Auzinger 2015)
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composition weights:
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ω1=-1.177679984178871007
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ω2=0.235573213359358134
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ω3=0.784513610477557264
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ω0 = 1 - 2(ω1+ω2+ω3)
= 1.315186320683911218
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LEM: 125.
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i | ai | bi | ci |
1 |
0 |
0 |
ω3/2 |
2 |
0 |
ω3/2 |
0 |
3 |
ω3 |
ω3/2 |
(ω2+ω3)/2 |
4 |
0 |
ω2/2 |
0 |
5 |
ω2 |
ω2/2 |
(ω1+ω2)/2 |
6 |
0 |
ω1/2 |
0 |
7 |
ω1 |
ω1/2 |
(ω0+ω1)/2 |
8 |
0 |
ω0/2 |
0 |
9 |
ω0 |
ω0/2 |
(ω0+ω1)/2 |
10 |
0 |
ω1/2 |
0 |
11 |
ω1 |
ω1/2 |
(ω1+ω2)/2 |
12 |
0 |
ω2/2 |
0 |
13 |
ω2 |
ω2/2 |
(ω2+ω3)/2 |
14 |
0 |
ω3/2 |
0 |
15 |
ω3 |
ω3/2 |
ω3/2 |
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