Features/384 sparse matrices

[AmirTouilPU]

Description

New class: coo_matrix:

coo_matrix class (should be re-named to coo_array). Indices are calculated using a function in the class file

Issue/s resolved:

• coo_indices are now working
• gshape calculation from a torch.sparse_coo_tensor in the test.py file: turnt the shape to tuple (couldn't modify the tuple), then to a list, changed the gshape[split] value, then turnt it to a tuple again.

Does this change modify the behaviour of other functions? If so, which?

Should the function indices be part of the class?

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[ClaudiaComito]

Following

[ClaudiaComito]

closing this as it is unfinished. Happy to reopen if somebody else wants to work on it.