diff options
author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
---|---|---|
committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/sample/pi.rb |
Fresh start
Diffstat (limited to 'jni/ruby/sample/pi.rb')
-rw-r--r-- | jni/ruby/sample/pi.rb | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/jni/ruby/sample/pi.rb b/jni/ruby/sample/pi.rb new file mode 100644 index 0000000..63be974 --- /dev/null +++ b/jni/ruby/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 |