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Tom Harke
pystencils
Commits
5790e28d
Commit
5790e28d
authored
Dec 06, 2019
by
Michael Kuron
Browse files
Fix FiniteDifferenceStaggeredStencilDerivation on Sympy 1.1
parent
ed864c0e
Changes
1
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Inline
Side-by-side
pystencils/fd/derivation.py
View file @
5790e28d
...
...
@@ -306,7 +306,7 @@ class FiniteDifferenceStaggeredStencilDerivation:
center
=
[
tuple
(
p
+
pos
)
for
p
in
points
].
index
((
0
,
0
,
0
)[:
dim
])
best
=
[
b
for
b
in
best
if
b
[
center
]
!=
0
]
if
len
(
best
)
>
1
:
# if there are still multiple, they are equivalent, so we average
weights
=
sp
.
Add
(
*
[
sp
.
Matrix
(
b
)
for
b
in
best
])
/
len
(
best
)
weights
=
[
sum
([
b
[
i
]
for
b
in
best
])
/
len
(
best
)
for
i
in
range
(
len
(
weights
))]
else
:
weights
=
best
[
0
]
assert
weights
...
...
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