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ift
NIFTy
Commits
83c74e7b
Commit
83c74e7b
authored
Mar 22, 2018
by
Martin Reinecke
Browse files
allow QuadraticEnergy without 'b' term
parent
f44ec28a
Pipeline
#26373
passed with stages
in 5 minutes and 34 seconds
Changes
1
Pipelines
1
Hide whitespace changes
Inline
Side-by-side
nifty4/minimization/quadratic_energy.py
View file @
83c74e7b
...
...
@@ -31,12 +31,14 @@ class QuadraticEnergy(Energy):
self
.
_b
=
b
if
_grad
is
not
None
:
self
.
_grad
=
_grad
Ax
=
_grad
+
self
.
_
b
Ax
=
_grad
if
b
is
None
else
_grad
+
b
else
:
Ax
=
self
.
_A
(
self
.
position
)
self
.
_grad
=
Ax
-
self
.
_
b
self
.
_grad
=
Ax
if
b
is
None
else
Ax
-
b
self
.
_grad
.
lock
()
self
.
_value
=
0.5
*
self
.
position
.
vdot
(
Ax
)
-
b
.
vdot
(
self
.
position
)
self
.
_value
=
0.5
*
self
.
position
.
vdot
(
Ax
)
if
b
is
not
None
:
self
.
_value
-=
b
.
vdot
(
self
.
position
)
def
at
(
self
,
position
):
return
QuadraticEnergy
(
position
=
position
,
A
=
self
.
_A
,
b
=
self
.
_b
)
...
...
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