tensors: optimize matrix operations.

tensors: optimize matrix operations.

tensors: Add benchmarking file

tensors: Add addition and multiplication tests for benchmarking

tensors: inlined slicing to improve metrics.

tensors: fix help-lint warnings.

tensors: restore newer matmul

tensors: add fixnum declaration.

tensors: away with you, unsafe!

tensors: transpose added to benchmarks

tensors: optimize matmul to be within an order of magnitude of np.

tensors: remove type declaration.

tensors: optimize matmul.