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↓ ABCD schemes
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table of coefficients (about 18 digits) (.txt) AB scheme, real: KL 10-6
s=10, p=6; 9-fold symmetric Strang composition recombined ('s9odr6b' by Kahan, Li 1997)
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composition weights:
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ω1=0.0822135962935508000
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ω2=-0.706246172557639360
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ω3=0.332599136789359439
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ω4=0.392161444007314139
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ω0 = 1 - 2(ω1+ω2+
ω3+ω4)
= 0.798543990934829964
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LEM: 1.8
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i | ai | bi |
1 | ω4/2 | ω4 |
2 | (ω3+ω4)/2 | ω3 |
3 | (ω2+ω3)/2 | ω2 |
4 | (ω1+ω2)/2 | ω1 |
5 | (ω0+ω1)/2 | ω0 |
6 | (ω0+ω1)/2 | ω1 |
7 | (ω1+ω2)/2 | ω2 |
8 | (ω2+ω3)/2 | ω3 |
9 | (ω3+ω4)/2 | ω4 |
10 | ω4/2 | 0 |
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