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18 lines
534 B
18 lines
534 B
#include <iostream>
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#include <Eigen/Dense>
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using namespace std;
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using namespace Eigen;
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int main()
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{
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Matrix2f A;
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A << 1, 2, 2, 3;
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cout << "Here is the matrix A:\n" << A << endl;
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SelfAdjointEigenSolver<Matrix2f> eigensolver(A);
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if (eigensolver.info() != Success) abort();
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cout << "The eigenvalues of A are:\n" << eigensolver.eigenvalues() << endl;
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cout << "Here's a matrix whose columns are eigenvectors of A \n"
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<< "corresponding to these eigenvalues:\n"
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<< eigensolver.eigenvectors() << endl;
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}
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