normSqd() [1/3]

SRDef syten::MPS::normSqd

(

LBOState const &

a

)

Calculates the norm of a state.

References syten::abs(), syten::STensorImpl::imag(), overlap(), syten::real(), SYTEN_ASSERT_DEBUG, and SYTEN_ZNORM_THRESHOLD.

Referenced by syten::MPS::RDMs::OrbRDM::checkValidity(), error_estimate_2svariance(), norm(), and orthogonalise_variational().

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