Rasmus Munk LarsenandRasmus Munk Larsen
8a3d61c790
libeigen/eigen!2509 Closes #2868 Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
12 lines
448 B
C++
12 lines
448 B
C++
// SPDX-FileCopyrightText: The Eigen Authors
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// SPDX-License-Identifier: MPL-2.0
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MatrixXd X = MatrixXd::Random(4, 4);
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MatrixXd A = X * X.transpose();
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cout << "Here is a random positive-definite matrix, A:" << endl << A << endl << endl;
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SelfAdjointEigenSolver<MatrixXd> es(A);
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MatrixXd sqrtA = es.operatorSqrt();
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cout << "The square root of A is: " << endl << sqrtA << endl;
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cout << "If we square this, we get: " << endl << sqrtA * sqrtA << endl;
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