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fix LLT for zero matrix

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This commit is contained in:
Gael Guennebaud 2010-07-15 20:00:34 +02:00
parent ccc6731f86
commit ec39a39cb6
1 changed files with 2 additions and 1 deletions
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Eigen/src/Cholesky/LLT.h
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@ -132,6 +132,7 @@ void LLT<MatrixType>::compute(const MatrixType& a)
m_isInitialized = true; m_isInitialized = true;
return; return;
} }
if(ei_real(m_matrix.coeff(0,0))>0)
m_matrix.col(0).end(size-1) = a.row(0).end(size-1).adjoint() / ei_real(m_matrix.coeff(0,0)); m_matrix.col(0).end(size-1) = a.row(0).end(size-1).adjoint() / ei_real(m_matrix.coeff(0,0));
for (int j = 1; j < size; ++j) for (int j = 1; j < size; ++j)
{ {