/usr/include/openturns/IdentityMatrix.hxx is in libopenturns-dev 1.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @file IdentityMatrix.hxx
* @brief The class IdentityMatrix implements identity matrices
*
* Copyright (C) 2005-2013 EDF-EADS-Phimeca
*
* This library 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.
*
* This library 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
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* @author schueller
* @date 2012-04-18 17:56:46 +0200 (Wed, 18 Apr 2012)
*/
#ifndef OPENTURNS_IDENTITYMATRIX_HXX
#define OPENTURNS_IDENTITYMATRIX_HXX
#include "OTprivate.hxx"
#include "CorrelationMatrix.hxx"
BEGIN_NAMESPACE_OPENTURNS
/**
* @class IdentityMatrix
*/
class IdentityMatrix
: public CorrelationMatrix
{
CLASSNAME;
public:
/** Default constructor */
IdentityMatrix();
/** Constructor with size */
IdentityMatrix(const UnsignedLong dim);
/** String converter */
virtual String __repr__() const;
/** IdentityMatrix transpose */
IdentityMatrix transpose () const ;
#ifndef SWIG
/** Operator () gives access to the elements of the matrix (read only) */
/** The element of the matrix is designated by its row number i and its column number j */
const NumericalScalar & operator () (const UnsignedLong i,
const UnsignedLong j) const;
#endif
/** Multiplications */
Matrix operator * (const Matrix & m) const;
SquareMatrix operator * (const SquareMatrix & m) const;
SymmetricMatrix operator * (const SymmetricMatrix & m) const;
CovarianceMatrix operator * (const CovarianceMatrix & m) const;
CorrelationMatrix operator * (const CorrelationMatrix & m) const;
using CorrelationMatrix::operator *;
/** Resolution of a linear system */
NumericalPoint solveLinearSystem(const NumericalPoint & b,
const Bool keepIntact = true);
Matrix solveLinearSystem(const Matrix & b,
const Bool keepIntact = true);
/** Compute determinant */
NumericalScalar computeLogAbsoluteDeterminant(NumericalScalar & sign,
const Bool keepIntact = true);
NumericalScalar computeDeterminant(const Bool keepIntact = true);
/** Compute eigenvalues */
NumericalPoint computeEigenValues(const Bool keepIntact = true);
NumericalPoint computeEigenValues(SquareMatrix & v,
const Bool keepIntact = true);
/** Check if the matrix is SPD */
virtual Bool isPositiveDefinite(const Bool keepIntact = true);
/** Build the Cholesky factorization of the matrix */
SquareMatrix computeCholesky(const Bool keepIntact = true);
/** Compute singular values */
NumericalPoint computeSingularValues(const Bool keepIntact = true);
NumericalPoint computeSingularValues(Matrix & u,
Matrix & vT,
const Bool fullSVD = false,
const Bool keepIntact = true);
protected:
/** Constructor with implementation */
IdentityMatrix(const Implementation & i);
private:
/** Operator () gives access to the elements of the matrix (to modify these elements) */
/** The element of the matrix is designated by its row number i and its column number j */
NumericalScalar & operator () (const UnsignedLong i,
const UnsignedLong j);
}; /* class IdentityMatrix */
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_COVARIANCEMATRIX_HXX */
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