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RealSchur: improve speed of computeNormOfT

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This commit is contained in:
Gael Guennebaud 2012-07-26 18:04:58 +02:00
parent 4e60e2cdf6
commit cfb76b242f
1 changed files with 1 additions and 1 deletions
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2
Eigen/src/Eigenvalues/RealSchur.h
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@ -300,7 +300,7 @@ inline typename MatrixType::Scalar RealSchur<MatrixType>::computeNormOfT()
// + m_matT.bottomLeftCorner(size-1,size-1).diagonal().cwiseAbs().sum();
Scalar norm(0);
for (Index j = 0; j < size; ++j)
norm += m_matT.row(j).segment((std::max)(j-1,Index(0)), size-(std::max)(j-1,Index(0))).cwiseAbs().sum();
norm += m_matT.col(j).segment(0, (std::min)(size,j+2)).cwiseAbs().sum();
return norm;
}