RosettaCodeData/Task/Averages-Root-mean-square/Erlang/averages-root-mean-square.erl
2013-04-10 14:58:50 -07:00

4 lines
118 B
Erlang

rms(Nums) ->
math:sqrt(lists:foldl(fun(E,S) -> S+E*E end, 0, Nums) / length(Nums)).
rms([1,2,3,4,5,6,7,8,9,10]).