Indexing

einx.get_at	Retrieves values from a tensor at the coordinates specified by another tensor.
einx.set_at	Sets values in a target tensor from an update tensor at the coordinates specified by an indexing tensor.
einx.add_at	Adds values from an update tensor to a target tensor at the coordinates specified by an indexing tensor.
einx.subtract_at	Subtracts values from a target tensor by an update tensor at the coordinates specified by an indexing tensor.
einx.argmax	Find the coordinates of the maximum values in the given tensor.
einx.argmin	Find the coordinates of the minimum values in the given tensor.
einx.argsort	Returns the indices that would sort values in the given tensor in ascending order.