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↓ ABCD schemes
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table of coefficients (about 18 digits) (.txt) ABC scheme, complex: A 7-4 c
s=7, p=4; 3-fold symmetric Strang composition recombined; similar to AB:A 4-4 c (Auzinger 2015)
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composition weights:
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ω1 = 1/(2 - 21/3e2iπ/3) = 0.324396404020171183 + 0.134586272490806697 i
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ω0 = 1 - 2ω1 = 0.351207191959657634 - 0.269172544981613394 i
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LEM: 1.4
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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 |
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