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view src/SbpOperators/operators/d2_4th.txt @ 504:21fba50cb5b0 feature/quadrature_as_outer_product

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Use LazyOuterProduct to construct multi-dimensional quadratures. This change allwed to: - Replace the types Quadrature and InverseQuadrature by functions returning outer products of the 1D operators. - Avoid convoluted naming of types. DiagonalInnerProduct is now renamed to DiagonalQuadrature, similarly for InverseDiagonalInnerProduct.
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Sat, 07 Nov 2020 13:07:31 +0100
parents 01b851161018
children
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# D2 order 4

boundary_stencils
     2    -5       4      -1     0     0
     1    -2       1       0     0     0
 -4/43 59/43 -110/43   59/43 -4/43     0
 -1/49     0   59/49 -118/49 64/49 -4/49

inner_stencil
-1/12     4/3  -5/2   4/3 -1/12

e
1

d1
-11/6 3 -3/2 1/3