table of coefficients (about 18 digits) (.txt)
AB scheme, real:
Y 4-4
s=4, p=4; symmetric 3-fold Strang composition recombined (Yoshida 1990)
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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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the only real s=p=4 scheme
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LEM: 3.7
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i | ai | bi |
1 | ω1/2 | ω1 |
2 | (ω1+ω0)/2 | ω0 |
3 | (ω1+ω0)/2 | ω1 |
4 | ω1/2 | 0 |