From 11dbedfaad4a9a9521ece2198a8dc491678b1902 Mon Sep 17 00:00:00 2001
From: shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 29 Aug 2007 04:06:12 +0000
Subject: add tag v1_8_6_5001

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_6_5001@13304 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ruby_1_8_6/sample/pi.rb | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 ruby_1_8_6/sample/pi.rb

(limited to 'ruby_1_8_6/sample/pi.rb')

diff --git a/ruby_1_8_6/sample/pi.rb b/ruby_1_8_6/sample/pi.rb
new file mode 100644
index 0000000000..63be974285
--- /dev/null
+++ b/ruby_1_8_6/sample/pi.rb
@@ -0,0 +1,18 @@
+#!/usr/local/bin/ruby
+
+k, a, b, a1, b1 = 2, 4, 1, 12, 4
+
+loop do
+  # Next approximation
+  p, q, k = k*k, 2*k+1, k+1
+  a, b, a1, b1 = a1, b1, p*a+q*a1, p*b+q*b1
+  # Print common digits
+  d = a / b
+  d1 = a1 / b1
+  while d == d1
+    print d
+    $stdout.flush
+    a, a1 = 10*(a%b), 10*(a1%b1)
+    d, d1 = a/b, a1/b1
+  end
+end
-- 
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