From: Fredrik Date: 2008-05-20T17:05:04+09:00 Subject: Why is Array#to_f not defined? Ruby (1.8.6) seems to be missing numeric conversion methods for Arrays : class Array def to_f self.map { |i| i.to_f } end end (and the same for to_i) Did somebody forget to include that? :) Surely there is no reason to NOT have this method for the Array class. /Fredrik