Eigen::internal::householder_determinant< HCoeffs, Scalar, IsComplex > Struct Template Reference

#include <HouseholderQR.h>

Static Public Member Functions
static void	run (const HCoeffs &hCoeffs, Scalar &out_det)

Detailed Description

template<typename HCoeffs, typename Scalar, bool IsComplex>
struct Eigen::internal::householder_determinant< HCoeffs, Scalar, IsComplex >

Member Function Documentation

run()

template<typename HCoeffs , typename Scalar , bool IsComplex>

static void Eigen::internal::householder_determinant< HCoeffs, Scalar, IsComplex >::run ( const HCoeffs &  hCoeffs, Scalar &  out_det  )

inlinestatic

                                                           {
    out_det = Scalar(1);
    Index size = hCoeffs.rows();
    for (Index i = 0; i < size; i++) {
      // For each valid reflection Q_n,
      // det(Q_n) = - conj(h_n) / h_n
      // where h_n is the Householder coefficient.
      if (hCoeffs(i) != Scalar(0)) out_det *= -numext::conj(hCoeffs(i)) / hCoeffs(i);
    }
  }

References conj(), Eigen::HouseholderQR< MatrixType_ >::hCoeffs(), i, and Eigen::EigenBase< Derived >::size().

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The documentation for this struct was generated from the following file:

• HouseholderQR.h