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More fun with nano.

Running Ruby 1.8.2-15 under windows.

I have the nano gem 0.8.2 installed.

trying the following under irb:

require 'nano/full'

gives back an error:

LoadError: No such file to load -- nano/float/approx?

... apparently coming from line 95 of nano/full.rb

Additionally, trying to do the following under irb:

require 'nano/array'
require 'nano/enumerable'

a  w( a b c d e )
puts a.each_permutation

gives back an error:

NoMethodError: undefined method 'permute' for ["b","c","d","e","f"]:Array
    from .../nano/enumerable/each_permutation.rb:28 : in 'each_permutation'

I did check docs and I just don't see what I'm doing wrong... Any 
enlightenment?

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