Why not .* and kron?

I’m confused on the roll of this package: why not just use ` .* ` (instead of ` hardamard ` ) and ` kron ` (instead of ` tensor `)?

Start by comparing the package's `hardamard` and `tensor` operations with Julia's `.*` and `kron`, and review the package description. Clarify the package's purpose and why these definitions are provided, then document the distinction in the appropriate project documentation.

索引モデルが issue の本文から書いたものです。