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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 | MatrixXcf A = MatrixXcf::Random(4,4);
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11 | HessenbergDecomposition<MatrixXcf> hd(4);
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12 | hd.compute(A);
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13 | cout << "The matrix H in the decomposition of A is:" << endl << hd.matrixH() << endl;
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14 | hd.compute(2*A); // re-use hd to compute and store decomposition of 2A
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15 | cout << "The matrix H in the decomposition of 2A is:" << endl << hd.matrixH() << endl;
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16 |
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17 | return 0;
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18 | }
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