Questions about Sparse Operations

What operations currently exist when dealing with both sparse and dense tensors? I noticed that adding a dense tensor to a sparse one is possible, but swapping the order of the arguments led to an error.

My other question is I’m curious where the code for doing sparse/dense operations is. I tried looking at the file, but the only mention of sparse is once at the top for a boolean flag.

look at

Docs are non-existent, but the supported operations are listed.

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