log()

STensor syten::STensorImpl::log

(

STensor

in

)

Takes the natural logarithm of a rank 0 STensor.

Given a real rank-0 STensor, returns its natural logarithm.

Remarks

Check in with Claudius whether this is auto differentiable

This function is autodifferentiable.

This function asserts that its argument is real, as the complex case is not handled by the autodifferentiation.

References syten::STensorImpl::STensor::autodiff_enabled(), syten::STensorImpl::STensor::get_and_renew_autodiff(), if_constexpr, imag(), std::log(), syten::STensorImpl::STensor::rank(), real(), syten::STensorImpl::STensor::set_autodiff_node(), SYTEN_ASSERT, SYTEN_TENSOR_RANK, and syten::STensorImpl::STensor::visit().

Referenced by syten::MPS::block_entropies().

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