isParallel() [1/2]

template<Rank rank, typename Scalar >

std::tuple<ParallelKind, typename ScalarBase<Scalar>::type, typename ScalarBase<Scalar>::type> syten::isParallel ( DenseTensor< rank, Scalar > const &  a, DenseTensor< rank, Scalar > const &  b  )

inline

Checks if two tensors are parallel, i.e. \( a_i = c \; b_i \quad \forall i \).

Parameters

a	first tensor
b	second tensor

Returns

a tuple {ParallelKind, c_nominator, c_denominator}

The second tensor multiplied by \( c \) will give the first tensor if the two tensors are parallel.

References syten::STensorImpl::imag(), std::make_tuple(), overlap(), overThreshold(), and SYTEN_ZNORM_THRESHOLD_SQD.

Referenced by checkedAddParallel().

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