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[136] | 1 | #include <Eigen/Dense>
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| 2 | #include <iostream>
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| 3 |
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| 4 | using namespace Eigen;
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| 5 | using namespace std;
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| 6 |
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| 7 | int main(int, char**)
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| 8 | {
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| 9 | cout.precision(3);
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| 10 | SelfAdjointEigenSolver<Matrix4f> es;
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| 11 | Matrix4f X = Matrix4f::Random(4,4);
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| 12 | Matrix4f A = X + X.transpose();
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| 13 | es.compute(A);
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| 14 | cout << "The eigenvalues of A are: " << es.eigenvalues().transpose() << endl;
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| 15 | es.compute(A + Matrix4f::Identity(4,4)); // re-use es to compute eigenvalues of A+I
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| 16 | cout << "The eigenvalues of A+I are: " << es.eigenvalues().transpose() << endl;
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| 17 |
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| 18 | return 0;
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| 19 | }
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