I’m also at the beginning of reading the book. I’d assume the author meant installing the language.
go ahead and create this module as calculator .exs. Start up iex and enter c(“calculator .exs”) to load and compile the module
You can access iex shell after installing Elixir successfully. The c("calculator.exs") is typed once you’re inside iex shell.
On the website it states: “What You Need: You’ll need a computer preferably running MacOS, Linux, or WSL/Ubuntu on Windows. You’ll install everything else you need (such as Elixir and an event store) as you progress through the book.”
Not sure if they’ll update this to be less ambiguous