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↓ ABCD schemes
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table of coefficients (about 18 digits) (.txt) AB scheme, real: PP 3/4 A
s=3, p=3, optimized; palindromic (Auzinger/Ketcheson 2014)
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same as in Emb 3/2 AKS
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LEM: 0.25
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Let (I) = given scheme, and (II) = (I) applied with A,B exchanged
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Then the additive scheme ((I)+(II))/2 has order p=4; LEM: 0.4
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((I)-(II))/2 is local error estimator for (I)
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i | ai | bi |
1 | 0.268330095781759925 | a3 |
2 | -0.187991618799159782 | a2 |
3 | 0.919661523017399857 | a1 |
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