[fzimmermann89]

..and for complex valued tensors, you need to conjugate.

[tripplyons]

I've only accounted for real numbers. I'm not sure how to cleanly account for conjugates when some of the einsums would need them and others wouldn't.

For example, a matrix product would need a complex conjugate, but a Hadamard product wouldn't.

If there is an elegant way to extend this to complex numbers, let me know!