table of coefficients (about 18 digits) (.txt)
ABC scheme, real:
Y 7-4
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s=7, p=4; symmetric 3-fold Strang composition recombined (analogous to AB:Y 4-4)
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composition weights:
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ω1 = 1/(2 - 21/3) = 1.351207191959657634
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ω0 = 1 - 2ω1 = -1.702414383919315268
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LEM: 31.
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| i | ai | bi | ci |
| 1 |
0 |
0 |
ω1/2 |
| 2 |
0 |
ω1/2 |
0 |
| 3 |
ω1 |
ω1/2 |
(ω1+ω0)/2 |
| 4 |
0 |
ω0/2 |
0 |
| 5 |
ω0 |
ω0/2 |
(ω1+ω0)/2 |
| 6 |
0 |
ω1/2 |
0 |
| 7 |
ω1 |
ω1/2 |
ω1/2 |