15 lines
548 B
C++
15 lines
548 B
C++
#include <iostream>
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#include <Eigen/Dense>
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int main() {
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Eigen::Matrix2f A;
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A << 1, 2, 2, 3;
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std::cout << "Here is the matrix A:\n" << A << std::endl;
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Eigen::SelfAdjointEigenSolver<Eigen::Matrix2f> eigensolver(A);
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if (eigensolver.info() != Eigen::Success) abort();
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std::cout << "The eigenvalues of A are:\n" << eigensolver.eigenvalues() << std::endl;
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std::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() << std::endl;
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}
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