mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-12-28 03:37:59 +00:00
ecc608d1c5
Added 'typeOfInnerProduct' support to ensure the correct type is returned from the matrix product operator.
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2013-2016 OpenFOAM Foundation
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of OpenFOAM.
|
|
|
|
OpenFOAM is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OpenFOAM 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 General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "SquareMatrix.H"
|
|
#include "labelList.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
template<class Type>
|
|
Foam::scalar Foam::detDecomposed
|
|
(
|
|
const SquareMatrix<Type>& matrix,
|
|
const label sign
|
|
)
|
|
{
|
|
Type diagProduct = pTraits<Type>::one;
|
|
|
|
for (label i = 0; i < matrix.m(); i++)
|
|
{
|
|
diagProduct *= matrix(i, i);
|
|
}
|
|
|
|
return sign*diagProduct;
|
|
}
|
|
|
|
|
|
template<class Type>
|
|
Foam::scalar Foam::det(const SquareMatrix<Type>& matrix)
|
|
{
|
|
SquareMatrix<Type> matrixTmp = matrix;
|
|
|
|
labelList pivotIndices(matrix.m());
|
|
label sign;
|
|
LUDecompose(matrixTmp, pivotIndices, sign);
|
|
|
|
return detDecomposed(matrixTmp, sign);
|
|
}
|
|
|
|
|
|
template<class Type>
|
|
Foam::scalar Foam::det(SquareMatrix<Type>& matrix)
|
|
{
|
|
labelList pivotIndices(matrix.m());
|
|
label sign;
|
|
LUDecompose(matrix, pivotIndices, sign);
|
|
|
|
return detDecomposed(matrix, sign);
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|