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phorsfall/fib.rb

Created November 23, 2010 15:20
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fib.rb
# Also see: http://timeless.judofyr.net/tailin-ruby
# Requires Ruby 1.9:
fib = lambda do |i, n = 1, result = 0|
if i == -1
result
else
i, n, result = i - 1, n + result, n
redo
end
end
puts fib.call 10000
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