From 42e2698db5908681916eeb0710169b3a87fb41cc Mon Sep 17 00:00:00 2001
From: Martin Bauer <martin.bauer@fau.de>
Date: Thu, 28 Mar 2019 09:16:21 +0100
Subject: [PATCH] Phase field equation derived from free energy - first draft
---
pystencils/fd/spatial.py | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/pystencils/fd/spatial.py b/pystencils/fd/spatial.py
index e3ef030..a4e0974 100644
--- a/pystencils/fd/spatial.py
+++ b/pystencils/fd/spatial.py
@@ -1,10 +1,8 @@
from typing import Tuple
import sympy as sp
-from functools import partial
-
from pystencils.astnodes import LoopOverCoordinate
from pystencils.cache import memorycache
-from pystencils import AssignmentCollection, Field
+from pystencils import Field
from pystencils.fd import Diff
from pystencils.transformations import generic_visit
from .derivative import diff_args
@@ -164,8 +162,10 @@ def discretize_spatial_staggered(expr, dx, stencil=fd_stencils_standard):
return generic_visit(expr, visitor)
+
# -------------------------------------- special stencils --------------------------------------------------------------
+
@memorycache(maxsize=1)
def forth_order_2d_derivation() -> Tuple[FiniteDifferenceStencilDerivation.Result, ...]:
# Symmetry, isotropy and 4th order conditions are not enough to fully specify the stencil
--
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