Exploring Graphs with Elixir

About the Code

The following conventions are followed in this book.

If something needs to be invoked on the command-line terminal, you’ll see a $ sign preceding it in the text:

$ iex
Erlang/OTP 24 [erts-12.3.1] ...

Interactive Elixir (1.13.4) - press Ctrl+C to exit (type h() ENTER for help)
iex>

If something needs to be invoked from within the Elixir interactive shell IEx, you’ll see a iex> sign preceding it in the text:

iex> g = Graph.new |> Graph.add_vertices([:a, :b])

Otherwise, if it’s a source file listing, you’ll usually see a file name banner:

apps/native_graph/lib/native_graph/builder.ex

def random_graph(limit) do
  for(n <- 1..limit, m <- (n + 1)..limit, do: do_evaluate(n, m))
 |> Enum.reject(&is_nil/1) ...