eigen/doc/snippets/SelfAdjointView_operatorNorm.cpp

MatrixXd ones = MatrixXd::Ones(3,3);
cout << "The operator norm of the 3x3 matrix of ones is "
     << ones.selfadjointView<Lower>().operatorNorm() << endl;
Update eigenvalues() and operatorNorm() methods in MatrixBase. * use SelfAdjointView instead of Eigen2's SelfAdjoint flag. * add tests and documentation. * allow eigenvalues() for non-selfadjoint matrices. * they no longer depend only on SelfAdjointEigenSolver, so move them to a separate file 2010-05-25 00:43:50 +08:00			`MatrixXd ones = MatrixXd::Ones(3,3);`
			`cout << "The operator norm of the 3x3 matrix of ones is "`
			`<< ones.selfadjointView<Lower>().operatorNorm() << endl;`