Erlang is a programming language with the specific qualities of immutable data and distributed computing.
Install the package.
For further documentation you can read Erlang's docs.
To activate the console, run:
Commands can be entered like this:
Erlang/OTP 22 [erts-10.7.2] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [hipe] Eshell V10.7.2 (abort with ^G) 1> 1 + 2 . 3 2> (2 + 3) * 4 / 5 . 4.0 3>