abs() [4/4]

template<Rank rank>

SRDef syten::abs ( TensorBlock< rank > const &  a )

inline

Gives some measure on the absolute value of the block.

The only guarantees are:

• A zero-block Z (at least one of the CGC spaces or the reduced tensor is zero in all entries) has abs(Z) == 0.
• A tensor block I with all dimensions of the reduced tensor and all dimensions of the CGC spaces 1 and all entries 1 has abs(I) == 1.

References abs(), syten::TensorBlock< rank >::c, syten::TensorBlock< rank >::m, and syten::GenericDenseTensorImpl::GenericDenseTensor< rank, Scalar >::standard().

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