Polyjuice is an attempt to make Elixir libraries and spec-related tools for as much of Matrix as I feel like. It currently consists of:

Why “Polyjuice”?

In the Harry Potter series, Polyjuice Potion is used to change the drinker’s appearance to resemble someone else. Thus Polyjuice Potion, like matrices in linear algebra, are both used for transformations.