Rasmus Munk LarsenandRasmus Munk Larsen
8a3d61c790
libeigen/eigen!2509 Closes #2868 Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
17 lines
634 B
C++
17 lines
634 B
C++
// SPDX-FileCopyrightText: The Eigen Authors
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// SPDX-License-Identifier: MPL-2.0
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MatrixXcd X = MatrixXcd::Random(4, 4);
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MatrixXcd A = X + X.adjoint();
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cout << "Here is a random self-adjoint 4x4 matrix:" << endl << A << endl << endl;
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Tridiagonalization<MatrixXcd> triOfA(A);
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MatrixXd T = triOfA.matrixT();
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cout << "The tridiagonal matrix T is:" << endl << T << endl << endl;
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cout << "We can also extract the diagonals of T directly ..." << endl;
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VectorXd diag = triOfA.diagonal();
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cout << "The diagonal is:" << endl << diag << endl;
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VectorXd subdiag = triOfA.subDiagonal();
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cout << "The subdiagonal is:" << endl << subdiag << endl;
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