eigenvalues() [4/4]

bool EigenM2::eigenvalues	(	const LMatrixRRR *	A,
		LMatrixCCC *	eigenvals )

Definition at line 442 of file eigen.cpp.

                                                             {
  auto old_prec = Real::get_default_prec(); 
  Real::set_default_prec(A->ring().get_precision());
 
  MatrixXmpRRR AXmp(A->numRows(), A->numColumns());
  fill_to_MatrixXmp(*A, AXmp);
 
  Eigen::EigenSolver<MatrixXmpRRR> es(AXmp,false);
  fill_from_MatrixXmp(es.eigenvalues(), *eigenvals);
 
  Real::set_default_prec(old_prec);
  return true;
}

References fill_from_MatrixXmp(), fill_to_MatrixXmp(), M2::ARingRRR::get_precision(), DMat< ACoeffRing >::numColumns(), DMat< ACoeffRing >::numRows(), and DMat< ACoeffRing >::ring().

Referenced by MatrixOps::eigenvalues(), MatrixOps::eigenvalues(), MatrixOps::eigenvalues(), and MatrixOps::eigenvalues().