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			git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3186 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
		
			
				
	
	
		
			18 lines
		
	
	
	
		
			323 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			18 lines
		
	
	
	
		
			323 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| #!/usr/local/bin/ruby
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| 
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| k, a, b, a1, b1 = 2, 4, 1, 12, 4
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| 
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| loop do
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|   # Next approximation
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|   p, q, k = k*k, 2*k+1, k+1
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|   a, b, a1, b1 = a1, b1, p*a+q*a1, p*b+q*b1
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|   # Print common digits
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|   d = a / b
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|   d1 = a1 / b1
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|   while d == d1
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|     print d
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|     $stdout.flush
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|     a, a1 = 10*(a%b), 10*(a1%b1)
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|     d, d1 = a/b, a1/b1
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|   end
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| end
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