dynmatrixev.hh File Reference

utility functions to compute eigenvalues for dense matrices. More...

#include <algorithm>
#include <memory>
#include <dune-common-config.hh>
#include "dynmatrix.hh"
#include "fmatrixev.hh"

Go to the source code of this file.

Namespaces
namespace	Dune
	Dune namespace.

Functions
template<typename K , class C >
static void	Dune::DynamicMatrixHelp::eigenValuesNonSym (const DynamicMatrix< K > &matrix, DynamicVector< C > &eigenValues, std::vector< DynamicVector< K > > *eigenVectors=nullptr)
	calculates the eigenvalues of a symmetric field matrix More...

Detailed Description

utility functions to compute eigenvalues for dense matrices.

Function Documentation

eigenValuesNonSym()

template<typename K , class C >

static void Dune::DynamicMatrixHelp::eigenValuesNonSym ( const DynamicMatrix< K > &  matrix, DynamicVector< C > &  eigenValues, std::vector< DynamicVector< K > > *  eigenVectors = nullptr  )

static

calculates the eigenvalues of a symmetric field matrix

Parameters

[in]	matrix	matrix eigenvalues are calculated for
[out]	eigenValues	FieldVector that contains eigenvalues in ascending order
[out]	eigenVectors	(optional) list of right eigenvectors

Note

LAPACK::dgeev is used to calculate the eigen values

References Dune::DynamicMatrixHelp::eigenValuesNonSym(), and Dune::DenseMatrix< MAT >::rows().

Referenced by Dune::DynamicMatrixHelp::eigenValuesNonSym().