diff +sbp/D4CompatibleVariable.m @ 255:df3cc9c5dffc operator_remake

Added ordinary 12th order accurate, with D1*D1 as 2nd derivative.
author Martin Almquist <martin.almquist@it.uu.se>
date Wed, 07 Sep 2016 15:54:41 +0200
parents 07fa0d6a05bb
children 6009f2712d13
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