Erlang (programming language)
Erlang is a general-purpose concurrent programming language and
runtime system. The sequential sub-set of Erlang is a functional language, with strict evaluation, single assignment and dynamic typing.
Named after A. K. Erlang and at the same time abbreviation for ERicsson LANGuage, it was developed at Ericsson for use
in telecommunication hardware. It was designed to support
distributed, fault-tolerant, soft-real-time, non-stop
applications. Since its release as open source in 1998, it became used by companies world-wide, including Nortel and T-Mobile.
Code looks like this:
-module(fact).
-export([fac/1]).
fac(0) -> 1;
fac(N) -> N * fac(N-1).
A Quicksort example taken from here
%% quicksort(List,CmpFun)
%% Sort a list of items using a user-specified
%% comparison function
quicksort([],_) -> [];
quicksort([Pivot|Rest],CmpFun) ->
quicksort([ X || X <- Rest, CmpFun(X,Pivot)],CmpFun) ++
[Pivot] ++
quicksort([ Y || Y <- Rest, CmpFun(Pivot,Y)],CmpFun).
See also: Erlang unit
