view d2_2nd.txt @ 45:56722ba36604

ass script that plots the derivative
author Ylva Rydin <ylva.rydin@telia.com>
date Thu, 10 Jan 2019 16:51:52 +0100
parents 91e662512e9a
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