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linear_nonaffine_engine.py
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Sun, May 19, 02:45
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Tue, May 21, 02:45 (2 d)
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R6746 RationalROMPy
linear_nonaffine_engine.py
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# Copyright (C) 2018 by the RROMPy authors
#
# This file is part of RROMPy.
#
# RROMPy is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# RROMPy is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with RROMPy. If not, see <http://www.gnu.org/licenses/>.
#
from
abc
import
abstractmethod
from
rrompy.utilities.base.types
import
Np1D
,
Np2D
,
List
,
paramVal
from
rrompy.utilities.numerical
import
hashDerivativeToIdx
as
hashD
__all__
=
[
'LinearNonAffineEngine'
]
class
LinearNonAffineEngine
:
"""Generic solver for non-affine parametric problems."""
@abstractmethod
def
A
(
self
,
mu
:
paramVal
=
[],
der
:
List
[
int
]
=
0
)
->
Np2D
:
"""
Assemble terms of operator of linear system and return it (or its
derivative) at a given parameter.
"""
derI
=
hashD
(
der
)
if
hasattr
(
der
,
"__len__"
)
else
der
A
=
self
.
baselineA
()
if
derI
<
0
:
return
A
return
A
@abstractmethod
def
b
(
self
,
mu
:
paramVal
=
[],
der
:
List
[
int
]
=
0
)
->
Np1D
:
"""
Assemble terms of RHS of linear system and return it (or its
derivative) at a given parameter.
"""
derI
=
hashD
(
der
)
if
hasattr
(
der
,
"__len__"
)
else
der
b
=
self
.
baselineb
()
if
derI
<
0
:
return
b
return
b
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