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Move laplace.jl from DiffOps to SbpOperators. Rename constandlaplace to secondderivative
author Vidar Stiernström <vidar.stiernstrom@it.uu.se>
date Mon, 22 Jun 2020 22:08:56 +0200
parents 6e3cdf57f0a1
children
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# D2 order 2

boundary_stencils
1 -2 1

inner_stencil
1 -2 1

e
1

d1
-3/2 2 -1/2