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* rewrite of the QR decomposition:

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- works for complex
  - allows direct access to the matrix R
* removed the scale by the matrix dimensions in MatrixBase::isMuchSmallerThan(scalar)
This commit is contained in:
Gael Guennebaud
2008-06-07 22:47:11 +00:00
parent eb7b7b2cfc
commit 4dd57b585d
3 changed files with 65 additions and 44 deletions
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7
Eigen/src/Core/Fuzzy.h
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@@ -63,7 +63,10 @@ bool MatrixBase<Derived>::isApprox(
* \note The fuzzy compares are done multiplicatively. A vector \f$ v \f$ is
* considered to be much smaller than \f$ x \f$ within precision \f$ p \f$ if
* \f[ \Vert v \Vert \leqslant p\,\vert x\vert. \f]
* For matrices, the comparison is done using the Hilbert-Schmidt norm.
*
* For matrices, the comparison is done using the Hilbert-Schmidt norm. For this reason,
* the value of the reference scalar \a other should come from the Hilbert-Schmidt norm
* of a reference matrix of same dimensions.
*
* \sa isApprox(), isMuchSmallerThan(const MatrixBase<OtherDerived>&, RealScalar) const
*/
@@ -73,7 +76,7 @@ bool MatrixBase<Derived>::isMuchSmallerThan(
typename NumTraits<Scalar>::Real prec
) const
{
return cwiseAbs2().sum() <= prec * prec * other * other * cols() * rows();
return cwiseAbs2().sum() <= prec * prec * other * other;
}
/** \returns \c true if the norm of \c *this is much smaller than the norm of \a other,