| Brian Silverman | 72890c2 | 2015-09-19 14:37:37 -0400 | [diff] [blame^] | 1 | MatrixXd X = MatrixXd::Random(4,4); |
| 2 | MatrixXd A = X * X.transpose(); | ||||
| 3 | cout << "Here is a random positive-definite matrix, A:" << endl << A << endl << endl; | ||||
| 4 | |||||
| 5 | SelfAdjointEigenSolver<MatrixXd> es(A); | ||||
| 6 | cout << "The inverse square root of A is: " << endl; | ||||
| 7 | cout << es.operatorInverseSqrt() << endl; | ||||
| 8 | cout << "We can also compute it with operatorSqrt() and inverse(). That yields: " << endl; | ||||
| 9 | cout << es.operatorSqrt().inverse() << endl; | ||||