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Diffstat (limited to 'CarpetExtra/CarpetProlongateTest/README')
| -rw-r--r-- | CarpetExtra/CarpetProlongateTest/README | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/CarpetExtra/CarpetProlongateTest/README b/CarpetExtra/CarpetProlongateTest/README index 8e722e428..4324e72e3 100644 --- a/CarpetExtra/CarpetProlongateTest/README +++ b/CarpetExtra/CarpetProlongateTest/README @@ -9,5 +9,10 @@ Licence : GPL Test prolongation in Carpet. The basic idea is to set up a grid function containing a polynomial of -a certain order of the coordinates. Prolongatin (interpolation) with -sufficiently high order must preserve these polynomials exactly. +a certain order of the coordinates. Prolongation (interpolation) with +sufficiently high order must preserve these polynomials exactly (up to +floating-point round-off). + +We test restriction as well, but the restriction operators are not +high-order accurate. Since restriction is first order accurate, and we +disable the restriction tests for the higher orders. |