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ADD: added other eigen lib

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This commit is contained in:
Henry Winkel
2022-12-21 16:19:04 +01:00
parent a570766dc6
commit 9e56c7f2c0
832 changed files with 36586 additions and 20006 deletions
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14
libs/eigen/Eigen/src/Eigenvalues/RealSchur.h
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@@ -13,6 +13,8 @@
#include "./HessenbergDecomposition.h"
#include "./InternalHeaderCheck.h"
namespace Eigen {
/** \eigenvalues_module \ingroup Eigenvalues_Module
@@ -22,7 +24,7 @@ namespace Eigen {
*
* \brief Performs a real Schur decomposition of a square matrix
*
* \tparam _MatrixType the type of the matrix of which we are computing the
* \tparam MatrixType_ the type of the matrix of which we are computing the
* real Schur decomposition; this is expected to be an instantiation of the
* Matrix class template.
*
@@ -51,10 +53,10 @@ namespace Eigen {
*
* \sa class ComplexSchur, class EigenSolver, class ComplexEigenSolver
*/
template<typename _MatrixType> class RealSchur
template<typename MatrixType_> class RealSchur
{
public:
typedef _MatrixType MatrixType;
typedef MatrixType_ MatrixType;
enum {
RowsAtCompileTime = MatrixType::RowsAtCompileTime,
ColsAtCompileTime = MatrixType::ColsAtCompileTime,
@@ -312,7 +314,7 @@ RealSchur<MatrixType>& RealSchur<MatrixType>::computeFromHessenberg(const HessMa
Scalar considerAsZero = numext::maxi<Scalar>( norm * numext::abs2(NumTraits<Scalar>::epsilon()),
(std::numeric_limits<Scalar>::min)() );
if(norm!=Scalar(0))
if(!numext::is_exactly_zero(norm))
{
while (iu >= 0)
{
@@ -515,7 +517,7 @@ inline void RealSchur<MatrixType>::performFrancisQRStep(Index il, Index im, Inde
Matrix<Scalar, 2, 1> ess;
v.makeHouseholder(ess, tau, beta);
if (beta != Scalar(0)) // if v is not zero
if (!numext::is_exactly_zero(beta)) // if v is not zero
{
if (firstIteration && k > il)
m_matT.coeffRef(k,k-1) = -m_matT.coeff(k,k-1);
@@ -535,7 +537,7 @@ inline void RealSchur<MatrixType>::performFrancisQRStep(Index il, Index im, Inde
Matrix<Scalar, 1, 1> ess;
v.makeHouseholder(ess, tau, beta);
if (beta != Scalar(0)) // if v is not zero
if (!numext::is_exactly_zero(beta)) // if v is not zero
{
m_matT.coeffRef(iu-1, iu-2) = beta;
m_matT.block(iu-1, iu-1, 2, size-iu+1).applyHouseholderOnTheLeft(ess, tau, workspace);