0 vs 1 indexing

[willow-ahrens]

#61

[willow-ahrens]

TODO check with Spencer?

[BenBrock]

I had a chat with @spencerpatty earlier today. He confirmed that MKL supports 1) both indices and offsets being 0-indexed and 2) both indices and offsets being 1-indexed.

So it seems we don't have a compelling reason to pursue mixed 0-indexed and 1-indexed arrays for now.