mesytec-mnode/external/taskflow-3.8.0/3rd-party/eigen-3.3.7/doc/snippets/SelfAdjointEigenSolver_SelfAdjointEigenSolver.cpp

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2025-01-04 01:25:05 +01:00
SelfAdjointEigenSolver<Matrix4f> es;
Matrix4f X = Matrix4f::Random(4,4);
Matrix4f A = X + X.transpose();
es.compute(A);
cout << "The eigenvalues of A are: " << es.eigenvalues().transpose() << endl;
es.compute(A + Matrix4f::Identity(4,4)); // re-use es to compute eigenvalues of A+I
cout << "The eigenvalues of A+I are: " << es.eigenvalues().transpose() << endl;