RosettaCodeData/Task/Averages-Root-mean-square/Ruby/averages-root-mean-square-2.rb

def rms(seq)
  Math.sqrt(seq.inject(0.0) {|sum, x| sum + x*x} / seq.length)
end
puts rms (1..10).to_a   # => 6.2048368229954285
Add all the A tasks 2013-04-10 14:58:50 -07:00			`def rms(seq)`
Just another update 2015-02-20 00:35:01 -05:00			`Math.sqrt(seq.inject(0.0) {\|sum, x\| sum + x*x} / seq.length)`
Add all the A tasks 2013-04-10 14:58:50 -07:00			`end`
Just another update 2015-02-20 00:35:01 -05:00			`puts rms (1..10).to_a # => 6.2048368229954285`