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SelfAdjointEigenSolver: add operatorSqrt() and operatorInverseSqrt()

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This commit is contained in:
Benoit Jacob
2008-12-19 14:15:32 +00:00
parent 84bb868f07
commit e4980616fd
2 changed files with 22 additions and 0 deletions
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3
test/eigensolver.cpp
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@@ -108,6 +108,9 @@ template<typename MatrixType> void selfadjointeigensolver(const MatrixType& m)
VERIFY((symmA * eiSymmGen.eigenvectors()).isApprox(
symmB * (eiSymmGen.eigenvectors() * eiSymmGen.eigenvalues().asDiagonal().eval()), largerEps));
MatrixType sqrtSymmA = eiSymm.operatorSqrt();
VERIFY(symmA.isApprox(sqrtSymmA*sqrtSymmA, ei_sqrt(test_precision<RealScalar>())));
VERIFY(sqrtSymmA.isApprox(symmA*eiSymm.operatorInverseSqrt(), ei_sqrt(test_precision<RealScalar>())));
}
template<typename MatrixType> void eigensolver(const MatrixType& m)