trace() [1/5]

template<typename Scalar >

Scalar syten::trace ( DenseTensor< 2, Scalar > const &  a )

inline

\( \sum_k A_{kk} \)

References syten::DenseTensor< rank, Scalar >::dim(), syten::DenseTensor< rank, Scalar >::getDims(), and SYTEN_ASSERT_MSG.

Referenced by syten::MPS::RDMs::OrbRDM::checkValidity(), dropDummy(), syten::IPEPSv2::expectation_value(), syten::Pyten::init_dense_tensor(), syten::Pyten::init_tensor(), and trace().

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