diff options
Diffstat (limited to 'Eigen/src/Eigenvalues/EigenSolver.h')
| -rw-r--r-- | Eigen/src/Eigenvalues/EigenSolver.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Eigen/src/Eigenvalues/EigenSolver.h b/Eigen/src/Eigenvalues/EigenSolver.h index 233e72353..2f395e92a 100644 --- a/Eigen/src/Eigenvalues/EigenSolver.h +++ b/Eigen/src/Eigenvalues/EigenSolver.h @@ -324,11 +324,12 @@ template<typename MatrixType> MatrixType EigenSolver<MatrixType>::pseudoEigenvalueMatrix() const { eigen_assert(m_isInitialized && "EigenSolver is not initialized."); + const RealScalar precision = RealScalar(2)*NumTraits<RealScalar>::epsilon(); Index n = m_eivalues.rows(); MatrixType matD = MatrixType::Zero(n,n); for (Index i=0; i<n; ++i) { - if (internal::isMuchSmallerThan(numext::imag(m_eivalues.coeff(i)), numext::real(m_eivalues.coeff(i)))) + if (internal::isMuchSmallerThan(numext::imag(m_eivalues.coeff(i)), numext::real(m_eivalues.coeff(i)), precision)) matD.coeffRef(i,i) = numext::real(m_eivalues.coeff(i)); else { @@ -345,11 +346,12 @@ typename EigenSolver<MatrixType>::EigenvectorsType EigenSolver<MatrixType>::eige { eigen_assert(m_isInitialized && "EigenSolver is not initialized."); eigen_assert(m_eigenvectorsOk && "The eigenvectors have not been computed together with the eigenvalues."); + const RealScalar precision = RealScalar(2)*NumTraits<RealScalar>::epsilon(); Index n = m_eivec.cols(); EigenvectorsType matV(n,n); for (Index j=0; j<n; ++j) { - if (internal::isMuchSmallerThan(numext::imag(m_eivalues.coeff(j)), numext::real(m_eivalues.coeff(j))) || j+1==n) + if (internal::isMuchSmallerThan(numext::imag(m_eivalues.coeff(j)), numext::real(m_eivalues.coeff(j)), precision) || j+1==n) { // we have a real eigen value matV.col(j) = m_eivec.col(j).template cast<ComplexScalar>(); |