Elixir's Range for arithmetic progression

Question

Is it possible to express arithmetic progression in a list without listing them all?

In Haskell, you could do it with the range function.

[2,4..10] == [2,4,6,8,10]

Is there a similar way to do it with Elixir ?

Answer 1

Stream.iterate/2 does what you want:

Stream.iterate(2, &(&1+2))

Answer 2

You can use Erlang's lists:seq function, from Elixir:

:lists.seq(2,10,2)

Answer 3

As I can see, there is a Stream.seq() added a month ago:

• Add Stream.seq() for generating potentially infinite streams of values
• Add a range/step/seq function