Rasmus Munk LarsenandRasmus Munk Larsen
8a3d61c790
libeigen/eigen!2509 Closes #2868 Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
13 lines
509 B
C++
13 lines
509 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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cout << "The inverse square root of A is: " << endl;
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cout << es.operatorInverseSqrt() << endl;
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cout << "We can also compute it with operatorSqrt() and inverse(). That yields: " << endl;
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cout << es.operatorSqrt().inverse() << endl;
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