eigenvectors() [4/4]

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

Definition at line 498 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);
  fill_from_MatrixXmp(es.eigenvalues(), *eigenvals);
  fill_from_MatrixXmp(es.eigenvectors(), *eigenvecs);
 
  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::eigenvectors(), MatrixOps::eigenvectors(), MatrixOps::eigenvectors(), and MatrixOps::eigenvectors().